Solve each system.
7x + 2y = -8 , 8y = 4x

Answers

Answer 1

After solving each system, 7x + 2y = -8, 8y = 4x , the values of x and y are calculated to be -1 and -1/2 respectively.

The given equations, 7x + 2y = -8, and 8y = 4x, are considered to be linear equations as the highest power of the variables in these equations is one.

By rearranging the second equation, the value of x can be found to be,

8y = 4x

x = 8y / 4

x = 2y

Putting the calculated value of x in the second equation,

7x + 2y = -8

7(2y) + 2y = -8

14y + 2y = -8

16y = -8

y = -8/16

y = -1/2

To solve for x, put the calculated value of y in the first equation,

7x + 2y = -8

7x + 2(-1/2) = -8

7x - 1 = -8

7x = -8 + 1

7x = -7

x = -7/7

x = -1

Thus the values of x and y in these systems are calculated to be -1 and -1/2 respectively.

To learn more about linear equations, click here:

https://brainly.com/question/2501033

#SPJ4


Related Questions

Someone please help.

In a trivia game, each correct answer is worth 10 points in the first round, 15 points in the second round, and 25 points in the third round. You score 370 points by answering 24 questions correctly. You score 55 more points in the third round than you do in the first round, How many questions do you answer correctly in each round?

Answers

The questions answered in each round was 12 in the first round, 5 in the second round and 7 in the third round.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the questions in the first round, y represent that of the second round and z represent that of the third round.

You score 370 points by answering 24 questions correctly:

x + y + z = 24   (1)

Also:

10x + 15y + 25z = 370     (2)

And:

25z = 10x + 55    (3)

From the three equations:

x = 12, y = 5, z = 7

The questions answered in each round was 12 in the first round, 5 in the second round and 7 in the third round.

Find out more on equation at: https://brainly.com/question/13763238

#SPJ1


Write a coordinate proof to prove the Centroid Theorem.
Given: Δ A B C , medians AR, BS , and CQ
Prove: The medians intersect at point P and P is two thirds of the distance from each vertex to the midpoint of the opposite side.

Answers

If Δ ABC , medians AR, BS , and CQ then the value of AP = 2/3 AR,

BP = 2/3 BS, and CP = 2/3 CQ.

What is meant by Centroid Theorem?

The triangle's centroid is the point where the three medians intersect. According to the centroid theorem, the centroid is 23 times the distance from each vertex to the midpoint of the opposite side.

Given: ΔABC, medians AR, BS, and CQ

AP = 2/3 AR, BP = 2/3 BS, and  CP = 2/3 CQ.

Slope of [tex]$\overline{A R}=\frac{3 c}{3 b+3 a}=\frac{c}{b+a}$[/tex]

Slope of [tex]$\overline{B S}=\frac{6 c}{6 b-3 a}=\frac{2 c}{2 b-a}$[/tex]

Slope of [tex]$\overline{C Q}=\frac{3 c}{3 b-6 a}=\frac{c}{b-2 a}$[/tex]

AR contained in the line [tex]$y=\left(\frac{c}{b+a}\right) x[/tex], BS contained in the line [tex]$y=\left(\frac{2 c}{2 b+a}\right)(x-3 a)[/tex], CQ contained in the line [tex]$y=\left(\frac{c}{b-2 a}\right)(x-6 a)$[/tex]

To find the coordinates of P, find the intersection point of two medians, BS and CQ.

[tex]$y=\left(\frac{2 c}{2 b-a}\right)(x-3 a) \text[/tex] and [tex]$y=\left(\frac{c}{b-2 a}\right)(x-6 a)[/tex]

[tex]$\frac{2 c}{2 b-a}(x-3 a) &=\frac{c}{b-2 a}(x-6 a) \\[/tex]

simplifying the above equation, we get

[tex]2 c(x-3 a)(b-2 a) &=c(x-6 a)(2 b-a) \\[/tex]

[tex]2 c\left(b x-2 a x-3 a b+6 a^2\right) &=c\left(2 b x-a x-12 a b+6 a^2\right)[/tex]

[tex]2 b c x-4 a c x-6 a b c+12 a^2 c &=2 b c x-a c x-12 a b c+6 a^2 c \\[/tex]

[tex]-3 a c x &=-6 a b c-6 a^2 c \\[/tex]

x = 2b + 2a

To find the value of y,

[tex]$y=\frac{2 c}{2 b-a}(x-3 a)[/tex]

simplifying the above equation, we get

[tex]$=\frac{2 c}{2 b-a}(2 b+2 a-3 a)[/tex]

[tex]$=\frac{2 c(2 b-a)}{2 b-a}=2 c$$[/tex]

So the coordinates of P are (2b + 2a, 2c).

Now, show that P is on AR.

[tex]$&y=\left(\frac{c}{b+a}\right)(2 b+2 a)=\frac{2 c(b+a)}{b+a}=2 c[/tex]

Thus, the three medians intersect at the same point.

To find the lengths of AR, AP, BS, BP, CQ, and CP

Using the Distance Formula.

[tex]A R &=\sqrt{\left((3 b+3 a)-0^2\right)+(3 c-0)^2} \\[/tex]

simplifying the above equation, we get

[tex]&=\sqrt{(3(b+a))^2+(3 c)^2} \\[/tex]

[tex]&=\sqrt{9\left((b+a)^2+c^2\right)} \\[/tex]

[tex]&=3 \sqrt{(b+a)^2+c^2} \\[/tex]

[tex]A P &=\sqrt{\left((2 b+2 a)-0^2\right)+(2 c-0)^2} \\[/tex]

[tex]&=\sqrt{(2(b+a))^2+\left(2 c^2\right)} \\[/tex]

[tex]&=\sqrt{4\left((b+a)^2+c^2\right)} \\[/tex]

[tex]&=2 \sqrt{(b+a)^2+c^2}[/tex]

[tex]B S &=\sqrt{(6 b-3 a)^2+(6 c-0)^2} \\[/tex]

[tex]&=\sqrt{(3(2 b-a))^2+(3(2 c))^2} \\[/tex]

[tex]&=\sqrt{9(2 b-a)^2+9(2 c)^2} \\[/tex]

[tex]&=3 \sqrt{(2 b-a)^2+4 c^2}[/tex]

[tex]B P &=\sqrt{(6 b-(2 b+2 a))^2+(6 c-2 c)^2} \\[/tex]

[tex]&=\sqrt{(4 b-2 a)^2+(4 c)^2} \\[/tex]

[tex]&=\sqrt{(2(2 b-a))^2+(2(2 c))^2} \\[/tex]

[tex]&=2 \sqrt{(2 b-a)^2+4 c^2} \\[/tex]

[tex]C Q &=\sqrt{(6 a-3 b)^2+(0-3 c)^2} \\[/tex]

[tex]&=\sqrt{(3(2 a-b))^2+(-3 c)^2} \\[/tex]

[tex]&=\sqrt{9\left((2 a-b)+c^2\right)} \\[/tex]

[tex]&=3 \sqrt{(2 a-b)^2+c^2} \\[/tex]

[tex]C P &=\sqrt{(6 a-(2 b+2 a))+(0-2 c)^2} \\[/tex]

[tex]&=\sqrt{(4 a-2 b)^2+(-2 c)^2} \\[/tex]

[tex]&=\sqrt{(2(2 a-b))^2+4 c^2} \\[/tex]

[tex]&=\sqrt{4(2 a-b)^2+4 c^2}[/tex]

Show that the P is two thirds of the distance from the vertices to the midpoints.

[tex]$\frac{2}{3} A R &=\frac{2}{3}\left(3 \sqrt{(b+a)^2+c^2}\right) \\[/tex]

[tex]&=2 \sqrt{(b+a)^2+c^2} \\[/tex] = A P

[tex]$\frac{2}{3} B S &=\frac{2}{3}\left(3 \sqrt{(2 b-a)^2+4 c^2}\right) \\[/tex]

[tex]$&=2 \sqrt{(2 b-a)^2+4 c^2} \\[/tex] = B P

[tex]$\frac{2}{3} C Q &=\frac{2}{3}\left(3 \sqrt{(2 a-b)^2+c^2}\right) \\[/tex]

[tex]&=2 \sqrt{(2 a-b)^2+c^2} \\[/tex] = C P

Therefore, AP = 2/3 AR, BP = 2/3 BS, and CP = 2/3 CQ.

To learn more about Centroid Theorem refer to:

brainly.com/question/24246680

#SPJ4

How do you solve 9=x+3/5 when the x and 3 are together above the five?

Answers

Answer:

x = 42

Step-by-step explanation:

9*5 = x+3/5*5

45 - 3= x+3 - 3

42 = x

UR WELCOME


Amy is paddling her canoe across a lake at a speed of 10 feet per second headed due north. The wind is blowing 40°C east of north with a velocity of 2.8 feet, per second. What is Amy's resultant velocity? Express your answer as a vector. Show your work.

Answers

The resultant velocity is about 12.3 feet per second at a heading of 8.4°east of north, <1.8, 12.14>

In this question,

Amy is paddling her canoe across a lake at a speed of 10 feet per second headed due north.

The wind is blowing 40°C east of north with a velocity of 2.8 feet, per second.

We need to find Amy's resultant velocity.

We write the direction vector for Amy in component form.

Due north is equivalent to 90° from the horizontal.

x-component:

x = 10 cos(90°)

x = 0

And y-component:

y = 10 sin(90°)

y = 10

The component form for Amy’s vector is <0, 10>.

Now we write the direction vector for wind in component form.

40 east of north is equivalent to 50° from the horizontal.

x-component:

x = 2.8 cos(50°)

x = 1.8

And y-component:

y = 2.8 sin(50°)

y = 2.14

The component form for the wind’s vector is <1.8, 2.14>

Add the vectors for Amy and the wind.

<0, 10> + <1.8, 2.14> = <1.8, 12.14>

Now, we determine the vector's magnitude by using Pythagoras theorem.

Let v be the velocity of Amy.

Let θ be the angle made by Amy with the horizontal

⇒ tan(θ) = |y/x|

⇒ tan(θ) = |12.14 / 1.8|

⇒ θ = 81.6°

81.6° with the horizontal is equivalent to 8.4° east of north.

Therefore, the resultant velocity is about 12.3 feet per second at a heading of 8.4°east of north, <1.8, 12.14>

Learn more about the resultant velocity here:

https://brainly.com/question/15093278

#SPJ4

I WILL MARK BRAINLIST!!! PLEASE HELP ITS MATH QUESTION Determine the approximate value of x using basic trigonometry.

Thank you so much for helping !

Answers

Step-by-step explanation:

I'm not sure but this is the solution hehe

5x-48=-3x+8 solve for x

Answers

Answer: x = 28

Explanation:
5x - 48 = 3x + 8
Start by subtracting 3 from both sides to get x only on one side
2x - 48 = 8
Then add 48 to both sides to get x by itself
2x = 56
Now divide each side by 2 to get rid of the coefficient next to the x giving you
X = 28

Answer:

[tex]x = 7[/tex]

Step-by-step explanation:

[tex]5x + 3x = 8 +48[/tex]

  ⬇️

8x = 8 + 48

          ⬇️

  8x = 56

Divide both sides of the equation by the coefficient of the variable;

[tex]x = \frac{56}{8}[/tex]

Cross out common factors;

[tex]x=7[/tex]

A fair coin is tossed 29 times. what is the probability that at most 27 heads occur?

Answers

Answer:

  0.99999994412

Step-by-step explanation:

You want the probability at most 27 heads occur in 29 tosses of a fair coin.

Probability

The probability is found using a suitable calculator to find ...

  P(X ≤ 27) ≈ 0.99999994412

for 29 trials with a probability of success of 1/2 on each trial using the binomial distribution.

__

Additional comment

We checked this value by also finding the probability of 28 or 29 heads in 29 trials, then subtracting the sum of those from 1.

<95141404393>

Find the coordinates of the midpoint of the segment with the endpoints (5, 24) and
(-1, 10).

Answers

(14.5, 4.5) would be the midpoint of this segment.

Solve for x: 1/3(2x − 8) = 4.

A. 2
B. 6
C. 10
D. 10/3

Answers

Answer:

C.10

Step-by-step explanation:

x=10

You can enter it into the calculator to check it.

Hope this helped! ;)

A chemist is heating water so it can dissolve a larger amount of sodium chloride. The water's temperature increases 7°C each minute from an initial temperature of 21°C. How long will it take for the water to reach 49°C? Write and solve an equation to find the answer.

Answers

The time taken by the water to reach 49 degree Celsius is 4 minutes.

According to the question, larger amount of sodium chloride is dissolved in the heating water. And the given data states that the water temperature increases 7 degree Celsius every minute.

Initial temperature of water is 21 degree Celsius.

Let us assume, water reaches at 49° C after 'm' minutes.

As per question, every minute temperature increases as 7°C. So, the expression can be written as: (21 + 7m)°C

⇒ 21 + 7m = 49

⇒m = 4 minutes.

Hence, the time taken to reach 49° C is 4 minutes.

What is temperature?

Temperature defines the atmosphere hotness. And it is expressed in different scales as well as in different parameters like Celsius etc. It is measured through the device known as thermometer.

To learn more about the temperature based problems from the given link:

https://brainly.com/question/25677592

#SPJ1


Identify the property illustrated by the equation.
5+(-5)=0

Answers

Identify the property illustrated by the equation.5+(-5)=0  Additive Inverse

What is an additive Inverse ?

The number that produces zero when added by -a is known as the additive inverse of a number, or a, in mathematics. The opposite, a shift in the sign, and negation are other names for this number.The definition of the additive inverse, which permits a wide application to mathematical objects other than numbers, is its inverse element under the binary operation of addition.Double additive inverse has no net effect, as with any inverse operation: −(−x) = x.

To learn more about additive inverse, refer:

https://brainly.com/question/3402614

#SPJ4

Porfabor ayuda con esto de matemáticas

Answers

Answer: A; $9; B; D

Step-by-step explanation:

1. 480➗6 = 80%

2. 36➗4= $9

3. 0.85 x 20= 17

4. 28➗2 = 14

14 x 6= 84

A is between points B and C. AB = 2x - 3, BC = 7x - 10, and AC = 32.

What is the value of x?

Answers

The value of the x in a linear equation is 7.8.

According to the statement

We have to find that the value of x.

So, For this purpose, we know that the

A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.

From the given information:

A is between points B and C. AB = 2x - 3, BC = 7x - 10, and AC = 32.

It means

BC = BA + AC

Then we have to substitute the values in it

Then

BC = BA + AC

7x - 10 =  2x - 3 + 32

7x - 2x = -3 +32+10

5x = 39

here the values of the x is a

x = 39/5.

x = 7.8

So, The value of the x in a linear equation is 7.8.

Learn more about linear equation here

https://brainly.com/question/4074386

#SPJ1

Find 1, 305 x 81. Then estimate to check your answer.

A. 1, 305 x 81 = 85, 705 Check: 1,000 × 8 = 80,000

B. 1, 305 x 81 = 105, 705. Check: 1,400 x 90 = 12, 600 :

C. 1,305 x 81 = 105, 705 Check: 1, 200 × 80 = 96,000

D. 1, 305 x 81 105, 705 Check: 1,300 x 80 = 104, 000​

Answers

the estimate of the product is reasonable and the values are Estimate: 1,305 × 81 ≈ 104,000 and Actual 1,305 × 81 = 105,706

The correct option is D.

In the given statement is:

Find 1, 305 x 81. Then estimate to check your answer.

The estimate of the product is reasonable and the values are Estimate: 1,305 × 81 ≈ 104000 and Actual 1,305 × 81 = 105706

How to estimate and then compute the product check that your answer is reasonable?

The product expression is given as

1,305 × 81

As an estimate, we have

1305 = 1300

81 = 80

So, we have:

1,305 × 81 ≈ 1300 * 80

Evaluate the product

1,305 × 81 ≈ 104000

For the actual product, we have

The estimate and the actual product both approximate to 100000

Hence, the estimate of the product is reasonable and the values are Estimate: 1,305 × 81 ≈ 104,000 and Actual 1,305 × 81 = 105,706

The correct option is D.

Read more about Estimation at:

https://brainly.com/question/19848531

#SPJ1

i need help please
Y=CD-8 for C

Answers

Answer:

c = (y+8)/d

Step-by-step explanation:

If f + j = 115 and j+k= 103 what is the value of j

Answers

The value of j is j = 103 - k = 115 - f.

A collection of equations for which we searched for common solutions is referred to in mathematics as a system of equations, sometimes known as a set of simultaneous equations or an equation system. Similar to single equations, a system of equations can be categorized. In everyday life, systems of equations are used to model problems when the unknown values can be represented by variables.

Consider the two equations,

f + j = 115                                                                    ----------------------(1)

j + k = 103                                                                   ----------------------(2)

Consider equation (2),

j + k = 103

Subtracting k from each side of the equation.

j + k - k = 103 - k

j = 103 - k

Consider equation (1),

f + j = 115

Subtraction f from each side of the equation,

f + j - f = 115 - f

j = 115 - f

Learn more about equation here:

https://brainly.com/question/2972832

#SPJ1

What are the coordinates of the vertices of the image after a 90-degree counter-
clockwise rotation about the origin?
3+
(2, 3)
2+
4
(-3,-1)
1 0
1
2.
1
3
(2, -1)
+X
4
triangle

Answers

Answer:

(-3, 2), (1, -3) and (1, 2)

Step-by-step explanation:

When a point (x, y) is rotated 90° counterclockwise rotation new coordinates become (-y, x)

Thus the negative of the original y coordinate becomes the new x coordinate and the original x coordinate becomes the y coordinate

( 2,  3)  ----->  (-3, 2)

(-3, -1)   ----->  (1, -3)

( 2, -1)   ----->  ( 1, 2)

7272826/$!\*\€ui7$2727ueiehsiqwowowowowowowowowowoeoeoeo 我喜欢鸡战利品,我可以亲吻它是的,喜欢它很酷

Which is the first step in simplifying the expression 2(x 3) 5? 2x 2(3) 5 2x 3 5 2 x 3 5 2(5) x 3

Answers

The first step in simplifying the expression 2(x+3)+5 = 2x+2(3)+5.

Given expression in 'x' is 2(x+3)+5.

In order to simplify this expression, we need to expand it by opening the parenthesis. That is, we need to distribute 2 over (x+3) first. For this we multiply 2 into (x+3) and then only we can add 5 to it.

So, 2(x+3) +5 = 2x + 2(3) +5

                     = 2x +6 +5

                     = 2x+11

Learn more about simplifying expressions at https://brainly.com/question/723406

#SPJ4

203X12 estimate to check for reasonableness

Answers

2436 ≈  2400 is the estimate products of 203X12 .

What is estimate products?

Round the numbers to some nearby figures that you can mentally multiply to estimate the product of multiplication. Rounding all variables to the biggest digit (place value) they have is one way to estimate values.Example -Estimation is frequently accomplished through sampling, which involves counting a small sample of a given thing and extrapolating that number to a wider population. Calculating how many sweets of a certain size are contained in a glass jar is an example of estimation.

203X12

= 2436

We can take compatible numbers

200 × 12

2400

So, 2436 ≈  2400

Learn more about estimate products

brainly.com/question/19169594

#SPJ9

PLEASE HELP ME!!! THIS IS TOO HARD!!! Emily runs 2,000 feet away from her house, and she ran back. How many miles did she run in total.

Answers

Answer: 4000

Step-by-step explanation: 2000 there and 2000 back. 2000+2000=4000

Hope this helps!

please answer correctly and ignore the bottom ill do that part just the top for you guys and gals please!

Answers

Answer:

7) x ≥ -3

8) x < -8

Explanation:

[tex]\sf If \ u^n < a, \ then -\sqrt[n]{a} < u < \sqrt[n]{a}[/tex][tex]\sf If \ u^n > a, \ then \ u < -\sqrt[n]{a} \ \ or \ \ u > \sqrt[n]{a}[/tex]

7.

[tex]\sf -3(2x-7) \leq 39[/tex]

distribute

[tex]\sf -6x + 21 \leq 39[/tex]

relocate variables

[tex]\sf -6x \leq 39-21[/tex]

simplify

[tex]\sf -6x \leq 18[/tex]

dividing both sides by (-), changes the inequality sign

[tex]\sf x \geq -3[/tex]

8.

[tex]\sf 4x + 9 < x - 15[/tex]

collect like terms

[tex]\sf 4x -x < - 15-9[/tex]

simplify

[tex]\sf 3x < - 24[/tex]

divide both sides by (+)3

[tex]\sf x < -8[/tex]

PLS PLS HELP ME THIS

Answers

Answer:

Yes

Step-by-step explanation:

Points D and E are on plane F.


Solve each equation. Check each solution. 5x/4 - 3/x= 1/4

Answers

The solution of the equation 5x/4 - 3/x= 1/4 for x is (1+√241)/10 or (1 -√241)/10.

According to the given question.

We have an equation 5x/4 - 3/x= 1/4.

As we know that, an equation is a condition on a variable such that two expressions in the variable should have equal value.

Therefore, the solution of the equation 5x/4 - 3/x= 1/4 for x is given by

5x/4 - 3/x= 1/4

⇒ ( 5x^2 -12) /4x  = 1/4

⇒ 5x^2 - 12   = (1/4)4x                 (multiplying both the sides by 4x)

⇒ 5x^2 - 12 = x

⇒ 5x^2 - x -12 = 0

⇒ x = [tex]\frac{1\pm\sqrt{1+240} }{10}[/tex]

⇒ x = (1+√241)/10 or (1 -√241)/10

Hence, the solution of the equation 5x/4 - 3/x= 1/4 for x is (1+√241)/10 or (1 -√241)/10.

Find out more information about equation here:

https://brainly.com/question/10413253

#SPJ4

Coordinates of the y- intercept

Answers

Answer:

(0, - 9 )

Step-by-step explanation:

the y- intercept is where the line crosses the y- axis

the line crosses the y- axis at (0, - 9 ) and is the y- intercept


You make $7.25/hr and your boss
promises at least 3 hours but no
more than 18 hours per week.
Payroll (FICA) taxes of 7.65% are
withheld from your paycheck.
Be sure to deduct your tax

Answers

Payroll (FICA) taxes of the question is 0.2295

According to the given data,

Payroll (FICA) taxes is  7.65%

boss promises at least 3 hours but no more than 18 hours per week.

then we get, 3 × 0.0765

                     = 0.2295

therefore, payroll taxes from your paycheck and to deduct  tax

0.2295

SHARE

All About the FICA Tax

If you earn a wage or a salary, you’re likely subject to Federal Insurance Contributions Act taxes. Not to be confused with the federal income tax, FICA taxes fund the Social Security and Medicare programs. Also known as payroll taxes, FICA taxes are automatically deducted from your paycheck. Your company sends the money, along with its match (an additional 7.65% of your pay), to the government. In this article we’ll discuss what FICA taxes are, how they’re applied and who’s responsible for paying them.

Planning your finances goes beyond just taxes. Find a local financial advisor today.

FICA Taxes: The Basics

Every payday, a portion of your check is withheld by your employer. That money goes to the government in the form of payroll taxes. There are several different types of payroll taxes, including unemployment taxes, income taxes and FICA taxes. Two types of taxes fall under the category of FICA taxes: Medicare taxes and Social Security taxes.

Paying FICA taxes is mandatory for most employees and employers under the Federal Insurance Contributions Act. The funds are used to pay for both Social Security and Medicare.

If you own a business, you’re responsible for paying Social Security and Medicare taxes, too. For self-employed workers, they’re referred to as SECA taxes (or self-employment taxes) based on regulations included in the Self-Employed Contributions Act.

A wage base limit applies to employees who pay Social Security taxes. This means that gross income above a certain threshold is exempt from this tax. The wage limit changes almost every year based on inflation. In 2021, it was $142,800. For 2022, the limit rose to $147,000. This income ceiling is also the maximum amount of money that’s considered when calculating the size of Social Security benefits.

Medicare taxes, on the other hand, don’t have a wage limit. But there’s an Additional Medicare Tax that high-income individuals must pay. That has been the case since January 1, 2013.

The Additional Medicare Tax rate is 0.90% and it applies to employees’ (and self-employed workers’) wages, salaries and tips. So any part of your income that exceeds a certain amount gets taxed for Medicare at a total rate of 2.35% (1.45% + 0.90%). That income ceiling for 2021 and 2022 is $200,000 for single filers, qualifying widows and anyone with the head of household filing status; $250,000 for married couples filing joint tax returns and $125,000 for couples filing separate tax returns. You can calculate how much you owe using Form 8959.

To learn more about Payroll taxes visit here : brainly.com/question/9497135

#SPJ1

20 POINTS
If f(x) = x - 5, what is the value of x when f(x) = 15?
10
20
5
0

Answers

Answer: The value of x is 20.

Algebraic function :

Given function is,  

                 

We have to find the value of x when

                   

The value of x is 20.

Step-by-step explanation: hope this helps

5. A city has a population of 350,000.
The
population has decreased by 30% in the past
ten years. What was the population of the city
ten years ago?

Answers

The population of city 10 years ago before 30% decrease in population was 500,000

In the given statement is :

A city has a population of 350,000.The population has decreased by 30% in the past ten years.

The formula for calculating the percent change between two values over the time is given by:

[tex]p=\frac{A-B}{B}[/tex]×[tex]100[/tex]

where,

'p' represents the percent change

'A' represents the New value

'B' represents the Old value

Since, p is the percent (decreased) = -30

Substitute the given values and solve for B;

then;

[tex]-30=\frac{350,000-B}{B}[/tex] × 100

Divide both sides by 100 we get;

[tex]-0.3=[/tex] [tex]\frac{350,000-B}{B}[/tex]

By cross multiply we get;

-0.3B = 350,000 - B

Add both sides B, we get

-0.3B + B = 350,000

0.7B = 350,000

Divide both sides by 0.7 we get;

B = 500,000

Therefore, The population of city 10 years ago before 30% decrease in population was 500,000

Learn more about Population at :

https://brainly.com/question/28454544

#SPJ1

what is the slope of a line parallel to line 9x+3y=2

please help :

Answers

If the slope is the same -3. Line with slope -3

find the volume of the object.


please HURRY

Answers

Answer: Total volume= 71.21 in^3

Step-by-step explanation:

The volume of the sphere= (4/3)*π*(2^3) = 33.51 in^3

The volume of the cylinder= π*(2^2)*3 = 37.7 in^3

Total volume= 71.21 in^3

This question is incomplete


Which statement is logically equivalent to the following conditional statement?
"If it is a rectangle, then it does not have exactly three sides."?
O If it has exactly three sides, then it is not a rectangle.
O If it is not a rectangle, then it has exactly three sides.
O If it does not have exactly three sides, then it is a rectangle.
O If it is not a rectangle, then it does not have exactly three sides.

Answers

The equivalent statement is:

" If it has exactly three sides, then it is not a rectangle."

Which statement is logically equivalent to the conditional statement?

The given conditional statement is:

"If it is a rectangle, then it does not have exactly three sides"

A logically equivalent statement is any statement that has the same truth values than the above one.

For a conditional:

If P, then Q,

An equivalent statement is:

if Not Q, then Not P.

So a equivalent statement to the given one is:

"If it has exactly three sides, then it is not a rectangle."

If you want to learn more about conditional statements:

https://brainly.com/question/11073037

#SPJ1

Answer: A: If it has exactly three sides, then it is not a rectangle.

Step-by-step explanation: Hope that helped

Other Questions
Mass is 4 grams and density is 2g/mL. what is the densityformula=equation=answer= what is the energy of a light with a frequency of 3000 MHz Find the first five terms of each sequence. a=5-a n , where a = 1 A coin is filmed using stop-motion animation so that it appears to move.b. Describe the translation from A to C using a translation vector. What conditions most directly resulted from the Imperial Crisis? Select the three correct answers. In the article "Word Collage Poems," a central idea is that writers find words and phrases in source texts and use those to create poetry that is new and different. Use details from the text to explain how those details convey the central idea. its k12 find the area for each parallelogram Which expression is equivalent to 8(12+30)?A) 8 + 12 x 8 + 30B) 8 x 12 + 8 x 30C) 8 x 12 x 8 x 30D) 8 x 12 + 30 lim x->3 (x^2+2x-1)=14Prove the statement using E, S (delta) definition. Use proper notation Find x and the measure of each side. JKL is isosceles with JK KL ,JK=4x-1,KL=2x+5 , and LJ=2x-1 . 4Select the correct text In thepassage.Which sentence from George Washington's Farewell Address warns Americans agalnst the negative Impact political parties could have on ourcountry?The very Idea of the power and the right of the people to establish government presupposes the duty of every individual to obey the establishedgovernment.However, combinations or assoclations of the above description may now and then answer popular ends, they are likely, In the course of timeand things, to become potent engines, by which cunning, ambitious, and unprincipled men will be enabled to subvert the power of the peopleand to usurp for themselves the reins of government, destroying afterwards the very engines which have lifted them to unjust dominion.Towards the preservation of your government, and the permanency of your present happy state, it Is requisite, not only that you steadllydiscountenance irregular oppositions to its acknowledged authority, but also that you resist with care the spirit of Innovation upon its principles,however specious the pretexts. One method of assault may be to effect, in the forms of the Constitution, alterations which will impalr theenergy of the system, and thus to undermine what cannot be directly overthrown. In all the changes to which you may be invited, rememberthat time and hablt are at least as necessary to fix the true character of governments as of other human institutions; that experience is thesurest standard by which to test the real tendency of the existing constitution of a country, that facility in changes, upon the credit of merehypothesis and opinion, exposes to perpetual change, from the endless variety of hypothesis and opinion; and remember, especially, that forthe efficlent management of your common interests, in a country so extensive as ours, a government of as much vigor as is consistent with theperfect security of liberty Is Indispensable. Liberty Itself will find In such a government, with powers properly distributed and adjusted, Its surestguardian. This spirit, unfortunately, Is Inseparable from our nature, having its root in the strongest passions of the human mind. It exists underdifferent shapes In all governments, more r less stifled, controlled, or rednbut, in those of the popular form, it is seen Its greatestrankness, and is truly their worst enemy.:-George Washinotonum? 56Try It! Light travels 299,792,458 meters per second, Sound travels at332 meters per second. Use a power of 10 to compare the speed of light tothe speed of sound.299,792,458 rounded to the greatest place value7There are 5 zeros in the rounded number.The estimated speed of light Which answer best describes the processfor calculating the volume of a solution where 5.7 g of ca(no3)2(aq) is dissolved in a 4.00 m aqueous solution? Andres needed to get his computer fixed. He took it to the repair store. Thetechnician at the store worked on the computer for 5.25 hours and charged him $116for parts. The total was $719.75. Which equation could be used to determine c, thecost of labor per hour? Your friend tells you he is going to start investing and would like to earn a 10% return. He says stocks make him nervous, so he will only be investing 10% in stocks and the remaining 90% will be invested in bonds. What would you say to him? Assume there were no placebo (i.e., control) group in your data set. conduct a test to see whether there is a difference in plaque level before treatment and after the second visit? please help!25.25% off $11225 What should you include on an income statement?Select all correct answers.1. income2. expenses3. net profit4. all assets The screen aspect ratio, or the ratio of the width to the height, of a high-definition television is 16:9. The size of a television is given by the diagonal distance across the screen. If an HDTV is 41 inches wide, what is its screen size? Prove that math is an art and not science.