pls helpppp its nearly due and i need a solution AND a answer x

The solution of the given system of equations is (3//2, -3/8)

We can solve a system of equations using:

- graphical method

- elimination method

- substitution method

The given system of equations:

(1/2)x + (2/3)y= 1  ......... (1)

(3/4)x - (1/3)y = 2  ..........(2)

Multiply equation (1) by 6

3x + 4y = 6   ..... (3)

Multiply equation (2) by 12

9x - 4y = 24  ...... (4)

Add equation (3) and (4)

3x + 4y = 6  

9x - 4y = 24  +

12x      = 30

   x      = 30/12 = 5/2

Substitute x = 5/2 into equation (3)

3x + 4y = 6  

3. (5/2) + 4y = 6

15/2 +4y = 6

4y = (12 - 15)/2 = -3/2

 y = -3/8

The solution is (3/2, -3/8)

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Answer:

Final Cost of 3 pounds: 7.25

Final cost of p pounds: 3.50p

Step-by-step explanation:

3.50p - 3.25 = ?

3.50(3) - 3.25 = ?

10.50 - 3.25 = $7.25

Write an expression of the cost to buy at least one pound of chicken.

3.50p

I hope this helps!

[tex]-3s\textless11s+1\\\\\\\\-3s-11s < 1\\\\\\-14s < 1\\\\\\-s < \frac{1}{14} \\\\s > -\frac{1}{14}[/tex]

===========================

[tex]\textcopyright ELIZA[/tex]

From the calculation carried out below, the number of children admitted was 1,400 and the number of adults admitted was 700.

How do we calculate the different numbers of people admitted?

This question can be solved using the substitution method as follows:

x = Number of children admitted

y = Number of adults admitted

x + y = 2,100 ............................................. (1)

1.50x + 4y = 4,900 ................................ (2)

From equation (1), we have:

x = 2,100 - y ................................................. (3)

Substituting x = 2,100 - y into equation (2) and solving for y, we have:

1.50(2,100 - y) + 4y = 4,900

3,150 - 1.50y + 4y = 4,900

2.50y = 4,900 - 3,150

2.50y = 1,750

y = 1,750 / 2.50

y = 700

Substituting y = 700 into equation (3), we have:

x = 2,100 - 700

x = 1,400

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The probability that the spinner will land on a number that is not a multiple of 11 is 73/80.

Multiples of 11 are 11,22,33,44,55,66,77.

That means there are 7 multiples of 11

80 -7 = 73

There are 73 non multiples of 11

P( non multiples of 8) = non multiples of 11 / total

                                  = 73/80

Probabilities are mathematical explanations of the likelihood that an event will occur or that a proposition is true. The likelihood of an event is represented by a number between 0 and 1, with 0 typically signifying impossibility and 1 typically signifying certainty.

The likelihood that an event will occur is measured by probability. It is difficult to provide a complete prediction for many events. By employing it, we are only able to forecast the likelihood of an event, or how likely it is, to occur.

According to the probability formula, the likelihood of an event occurring, or P(E), is determined by the proportion of positive outcomes to all other outcomes.

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The next two terms of the sequence are 96 and 192. And the formula for the nth term of the sequence is [tex]T_{n+1} = 2T_{n}[/tex].

According to the given question.

We have a sequence 3, 6, 12, 24, 48, ..

Since, the first term of the sequence is 3.

The second term of the sequence is 6.

The third term of the sequence is 12.

Here, we can say that the next term is twice the previous term.

So, the next two terms of the given sequence, i.e.

Sixth term = 48 × 2 = 96

Seventh term  = 96 × 192

Therefore, the formula for the nth term of the sequence is given by

[tex]T_{n+1} = 2T_{n}[/tex].

Hence, the next two terms of the sequence are 96 and 192. And the formula for the nth term of the sequence is [tex]T_{n+1} = 2T_{n}[/tex].

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The value of the factorial expression is 99/10

The expression is given as

98!/100! x 10

The above expression implies that we multiply 10 by the quotient of 98! and 100!

This can be done directly using a calculator, and it can be solved step by step

The step by step procedure is as follows

Expand the denominator

98!/100! x 10 = 98!/100 * 99 * 98! x 10

Evaluate the quotient

98!/100! x 10 = 1/100 * 99 x 10

This gives

98!/100! x 10 = 1/10 * 99

Evaluate the product

98!/100! x 10 = 99/10

Hence, the value of the factorial expression is 99/10

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Answer:

-t*(t -16) ≥ 39

-t*(t -16)  = 39

t = 3 or 13 hours

Step-by-step explanation:

When number of people is at 39 or more means the number of people of greater than or equal to 39.

 So, the inequality is,

          -t*(t -16) ≥ 39

When the number of people is 39, the equation is,

     -t*(t - 16) = 39

     -t²+ 16t   = 39

0 = 39 + t² - 16t

t² - 16t + 39 = 0

Sum = -16

Product = 39

Factors = -3 , -13   [ (-3) * (-13) = 39  & (-3) +(-13) = -16 ]

Rewrite the middle term using the factors.

t² - 3t - 13t + 39 = 0

t(t -3) - 13(t - 3) = 0

(t -3)( t - 13)     = 0

     t -3 = 0     ; t- 13 = 0

          t = 3  or  t = 13

t = 3 hours or 13 hours.

Answer:

y = 2x - 3

Step-by-step explanation:

1) Find the slope

The slope of any function, if given the coordinates of at least two of the points it crosses, is given by the formula  [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex].

We are given the points (4, 5) and (-1, -5), therefore, we can substitute their values:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{5 - (-5)}{4 - (-1)} = \frac{10}5 = 2[/tex]

2) Find the line's equation
We can find the line's equation by substituting one of the given points and the slope we just found into the formula [tex]y - y_1 = m(x - x_1)[/tex]:

[tex]y - 5 = 2(x - 4) \\ \to y - 5 = 2x - 8 \\ \to y = 2x - 3[/tex]

Answer: 2x - 3.

Step-by-step explanation: I took the test.

Answer:

Since the final answer has a factor of 4, it is a multiple of 4.

Step-by-step explanation:

Let the smaller even number be 2n.

The next greater even number is 2n + 2.

(2n)² + (2n + 2)² = 4n² + 4n² + 8n + 4 = 8n² + 8n + 4 = 4(2n² + 2n + 1)

The dimensions of the rectangular playing field are:

length = 92 yards and

width = 24 yards.

Given, the perimeter of the rectangular field is : 232 yards.

From the given question, length of the field is 4 yards less than quadruple the width.

hence, let the width of the field be x yards.

Length of the field = 4x - 4 yards.

we know that perimeter of the rectangle = 2(l+w)

therefore, substitute the values in the above formula:

2(4x - 4 + x) = 232

2(5x - 4) = 232

multiply the terms.

10x - 8 = 232

arrange the constants on one side.

10x = 232 + 8

10x = 240

x = 240/10

x = 24

hence we get the width as x = 24 yards.

Now substitute the value of x to find out the value of the length.

therefore, l = 4x - 4

l = 4(24) - 4

l = 96 - 4

l = 92

Therefore length and width of the rectangular field is 92 and 24 yards respectively.

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Answer:

in 1 year Allan would save 120 dollars, this is because, 10x12=120

Step-by-step explanation:

to find out what he would save I 2 years just multiply 120 by 2, 120x2=240, and for 3 years multiply 120 by 3, and so on.

Refer to the image attached.

Parametric equation uses an independent variable known as a parameter (commonly represented by t) and dependent variables that are defined as continuous functions of the parameter and independent of other variables. When necessary, more than one parameter can be used.

Now,

In order to plot the graphs of the given parametric equations, we will be sketching a table, in which, the values of the equations will be found at various values of the parameter.

=> Refer to the table in the image attached.

For the values so found of the parametric equations for the respective parameter, a graph will be plotted for both the equations:

Refer to the graph in the image attached.

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The profession that is projected to have the greatest percent of increase in the number of jobs from 2006 to 2016 is B. sound engineer technician.

The increase in percentage for orthodontist will be:

= (10214 - 9206) / 9206 × 100

= 1008 / 9206 × 100

= 10.95%

The increase in percentage for sound engineer will be:

= (17864 - 16125) / 16125 × 100

= 1739/16125 × 100

= 10.79%

The increase in percentage for police officer will be:

= (719041 - 648982) / 719041 × 100

= 70059/719041 × 100

= 9.74%

The increase in percentage for editor will be:

= (124135 - 122273)/124135 × 100

= 1862/124135 × 100

= 1.5%

Therefore, the sound engineer has the greatest percentage increase.

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Answer:

sound engineer

Step-by-step explanation:

Answer:

= (3 + -10 + -2 + 13 + 11) / 5

= 15/5

Step-by-step explanation:

3

Hey there!

Your mean simply means, your average….

To find it you have to ADD all of your numbers and DIVIDE it by the total number you have in your data plot.

3 + -10 + -2 + 13 + 11 / 5

= 3 - 10 - 2 + 13 + 11 / 5

= -7 - 2 + 13 + 11 / 5

= -9 + 13 + 11 / 5

= 4 + 11 / 5

= 15 / 5

= 3

Therefore, your answer should be: 3

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

one way to name the symbol is our and another way to name the symbol is rco

y(2.5) = 15.9389 is Use euler's method with step size 0.1 to estimate y(2.5), where y(x) is the solution of the initial-value problem.

What is euler's method?

First-order methods, such as the Euler method, have local errors that are proportional to the square of the step size and global errors that are proportional to the step size.

f(x,y) = 3y+2xy

So, starting at t0 = 2, repeat the above sequence until t0>2.5

a) m = f(2,1) = 3(1)+2(2)(1) = 7

b) y1 = y0 + hm = 1+0.1(7) = 1.7

c) t1 = t0 + h = 2.1

d) show t1 and y1

e) t0 = t1 = 2.1

f) y0 = y1 = 1.7

2nd iteration

a) m = f(2.1,1.7) = 3(1.7)+2(2.1)(1.7) = 5.1 + 7.14 = 12.24

b) y1 = y0 + hm = 1.7+0.1(12.24) = 1.7 + 1.224 = 2.924

c) t1 = t0 + h = 2.2

d) show t1 and y1

e) t0 = t1 = 2.2

f) y0 = y1 = 2.924

This is what I got for all iterations from a simple program x y

2.1 1.7

2.2 2.924

2.3 5.08776

2.4 8.9544576

2.5 15.938934528

y(2.5) = 15.9389

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Answer:

70

Step-by-step explanation:

21 is 30 % so multiply 21 by 3 which is 63 and then divide 21 by 3 which is 7 and add the 7 to 63

The explicit formula for the given sequence is a(n) = 2 . (0.5)ⁿ and the first five terms are: 1, 0.5, 0.25, 0.125, 0.0625

Given the parameters:

First term, a(1) = 1, and

common ratio, r = 0.5

We are ask to find the explicit formula for the geometric sequence and generate the first five terms.

Recall that in a geometric sequence:

a(n) = a(1) . rⁿ⁻¹

Where a(n) is the nth term.

Substituting a(1) = 1 and r = 0.5:

a(n) = 1 . (0.5)ⁿ⁻¹

       = (0.5)⁻¹. (0.5)ⁿ

       = 2 . (0.5)ⁿ

To generate the first five terms, we can use the above explicit formula for n = 1, 2, ..., 5  or we can use a recursive procedure. Remember that in a geometric sequence:

a(n) = a(n-1) . r

Therefore,

a(1) = 1  (given)

a(2) = 1 . (0.5) = 0.5

a(3) = 0.5 . (0.5) = 0.25

a(4) = 0.25 . (0.5) = 0.125

a(5) = 0.125 . (0.5) = 0.0625

Thus, the first five terms are: 1, 0.5, 0.25, 0.125, 0.0625

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The equations of the three perpendicular bisectors in the triangle ABC are y = - (1 / 2) · x + 9 / 4, x = 2 and y = - (6 / 7) · x + 24 / 7.

Triangles are polygons with three sides and three perpendicular bisectors, whose equations need the informations of slopes and midpoints of each side. Bisectors are lines that partitions line segments in two parts of equal length.

First, determine the midpoints of each side:

Side AB

M₁(x, y) = 0.5 · (- 3, 0) + 0.5 · (0, 6)

M₁(x, y) = (- 1.5, 0) + (0, 3)

M₁(x, y) = (- 1.5, 3)

Side BC

M₂(x, y) = 0.5 · (0, 6) + 0.5 · (4, 6)

M₂(x, y) = (0, 3) + (2, 3)

M₂(x, y) = (2, 6)

Side AC

M₃(x, y) = 0.5 · (- 3, 0) + 0.5 · (4, 6)

M₃(x, y) = (- 1.5, 0) + (2, 3)

M₃(x, y) = (0.5, 3)

Second, determine the slope of the perpendicular bisectors:

Side AB

m = (6 - 0) / [0 - (- 3)]

m = 2

m' = - 1 / m

m' = - 1 / 2

Side BC

m = (6 - 6) / (4 - 0)

m = 0

m' = - 1 / m

m' = NaN  (Vertical line)

Side AC

m = [4 - (-3)] / (6 - 0)

m = 7 / 6

m' = - 1 / (7 / 6)

m' = - 6 / 7

Third, derive the equations of the bisectors:

Side AB

b = 3 - (- 1 / 2) · (- 1.5)

b = 9 / 4

y = - (1 / 2) · x + 9 / 4

Side BC

x = 2

Side AC

b = 3 - (- 6 / 7) · (0.5)

b = 24 / 7

y = - (6 / 7) · x + 24 / 7

The equations of the three perpendicular bisectors in the triangle ABC are y = - (1 / 2) · x + 9 / 4, x = 2 and y = - (6 / 7) · x + 24 / 7.

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The other root of the given quadratic equation is a = ± 3/√2.

Given that, x=2 and x²+ax+12=0.

The roots of a quadratic equation are the values of the variable that satisfy the equation. They are also known as the "solutions" or "zeros" of the quadratic equation.

Now, put x=2 in x²+ax+12=0 and find the value of a.

That is, 2²+2a+12=0

⇒4+12+2a=0

⇒16+2a=0

⇒2a=-16

⇒a=-8

So, the value of a is -8.

Put (0, 6) and (4, 6) in the function y=2x²+bx+c and find the value of b and c.

That is, 6=2(0)²+b(0)+c

⇒ c=6

6=2(4)²+b(4)+c

⇒ 6 = 32+4b+c

⇒ -26 = 4b + 6

⇒ 4b = -32

⇒ b = -8

So, the value of b is -8 and the value of c is 6.

Put x=a (root) in the equation 2x + x/a -9 = 0 and find the other root.

That is, 2a²+a/a -9 = 0

⇒ 2a² - 9 = 0

⇒ a²=9/2

⇒ a = ± 3/√2

Therefore, the other root of the given quadratic equation is a = ± 3/√2.

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The markup percent of the water blaster in the store is 30%

The store sells a water blaster for $26
They bought it for $20

New price is $26

Original price is $20

The markup percent can be calculated as follows

26-20/20 × 100

= 6/20 × 100

= 0.3 × 100

= 30%

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Answer:

[tex]y = -5x - 23[/tex]

Step-by-step explanation:

To write an equation in the slope-intercept form for a line, given the coordinates of a point on the line as well as the line's slope, we use the following formula:

[tex]\boxed{y - y_1 = m(x - x_1)}[/tex],

where [tex]m[/tex] is the slope of the line and [tex](x_1, y_1)[/tex] are the given coordinates of a point.

In this question, we are told that the slope is -5 and the coordinates of a point passing through the point are (-3, -8).

Therefore, using the above formula, we can write:

[tex]y - (-8) = -5(x - (-3))[/tex]

⇒ [tex]y + 8 = -5(x + 3)[/tex]

⇒ [tex]y + 8 = -5x - 15[/tex]           [Distributing -5 into the brackets]

⇒ [tex]y = -5x - 15 - 8[/tex]           [Subtracting 8 from both sides]

⇒ [tex]y = -5x - 23[/tex]

This means that the equation for the slope-intercept form of the line is  [tex]y = -5x - 23[/tex] .

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Answer:

4784.

Step-by-step explanation:

8 * 598 = 8(600- _2_)

=

8 (600) - 8(_2_)

= 4800 - _16_

= 4784__

Answer:

a=7

b=8

c=12

d=33

find e by adding up all numbers in the Venn diagram then subtract the total amount of people by total from the Venn diagram to find e

The probability that the first chip is green and the second is brown is 1/20,

Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

P(E) = Number of favorable outcomes / total number of outcomes

Given that A bag contains 3 red chips, 5 green chips, 2 yellow chips, 4 brown chips, and 6 purple chips. One chip is chosen at random, the color noted, and the chip returned to the bag.

The probability of selecting the chip is green;

= 5/20

= 1/4

The probability of selecting the chip is brown;

= 4/20

= 1/5

Then the probability that the first chip is green and the second is brown

= 1/4 x 1/5

= 1/20

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Answer:

You showed the right work and got the right answer!

x = 6

Step-by-step explanation:

Since B is in the middle of A and C, AB + BC = AC

So,

2x - 11 + 8 = x + 3

x - 3 = 3

x = 6