Mathematics High School

If AB = 2x+3, BC = 3x-5, and AC = 38, what is the value of x?​

Answers

Answer 1
x would equal 8. because you would add AB and BC together and set it equal to AC

Related Questions

#1-11

20 points!!!!!

Answers

Answer:

Step-by-step explanation:

1. 30

2. 23

3. 8

4.52

5.144

6.40

7. 210

8. 144

9. 135

10. 105

11. 2(207)

In ΔNOP, m ∠ N = ( 9 x + 8 ) ∘ m∠N=(9x+8) ∘ , m ∠ O = ( 4 x + 13 ) ∘ m∠O=(4x+13) ∘ , and m ∠ P = ( 2 x − 6 ) ∘ m∠P=(2x−6) ∘ . Find m ∠ N . m∠N.

Answers

Answer: -0=

Step-by-step explanation:

Answer:

-0=

Step-by-step explanation:

the square root 2..25 is _____.
A. 0.15
B. 1.5
C. irrational
D. 15
PLEASE SOMEONE HELP!!!

Answers

Answer:

Hi there!

Your answer is:

B. 1.5

Step-by-step explanation:

The square root of 2.25 = 1.5

Check your work!

1.5×1.5 = 2.25!!✓

Hope this helps!

Answer:

The answer is b. 1.5

Step-by-step explanation:

Betty's Bakery calculates the total price d in dollars for c cupcakes using the equation d= 2c

What does 2 mean in this situation?
A) The bakery charges $2 for each cupcake.
B) The bakery sells 2 cupcakes for a dollar
C) The bakery sells 2 types of cupcakes

Answers

A) the bakery charges two dollar for each cupcake

Which statement could describe the dog’s movement 5 seconds after the command was given?
A. The dog stopped to lie down and obey the trainer’s command.
B. The dog was running towards the trainer to receive a treat.
C. The dog was running away from the trainer to chase a squirrel.
D. The dog was stopped but began running towards the trainer.

Answers

B the dog was running towards the trainer to receive a treat

Someone help me please asap?! :)

Answers

Answer:

[tex]j=qn[/tex]

Step-by-step explanation:

[tex]q=\frac{j}{n}[/tex]

Switch sides:

[tex]\frac{j}{n} =q[/tex]

Multiply n to both sides:

[tex]\frac{j}{n} *n=q*n[/tex]

[tex]j=qn[/tex]

Bob would like to create a triangle that is seven less than twice the perimeter of the triable below. Give an expression of the perimeter of the new triangle.

Answers

Answer:

[tex] 14y + 9 [/tex]

Step-by-step explanation:

Perimeter of the triangle = [tex] (y + 9) + 2y + (4y - 1) [/tex]

[tex] y + 9 + 2y + 4y - 1 [/tex]

Combine like terms

[tex] y + 2y + 4y + 9 - 1 [/tex]

[tex] Perimeter = 7y + 8 [/tex]

If Bob creates a new triangle whose perimeter is 7 less than twice the perimeter of the given triangle, the expression for the perimeter of the new triangle would be:

Twice of the perimeter = 2(7y + 8)

7 less than twice the perimeter = 2(7y + 8) - 7

Simplify the expression

New perimeter = [tex] 2(7y + 8) - 7 [/tex]

= [tex] 2*7y + 2*8 - 7 [/tex] (distributing 2)

[tex] = 14y + 16 - 7 [/tex]

New perimeter [tex] = 14y + 9 [/tex]

translate 5 units left and 2 units down Q(1, 2) R(4,3) S(3, 1)​

Answers

Answer:

Q1(-4,0) R1(-1,1) S1(-2,-1)

Sin7x - 10cosx = sinx +cos2x

Answers

Answer:

sin7x - sinx = cos2x - 10cosx

= sin6x = 10cosx

Step-by-step explanation:

hope that will help you

do you guys know ? i really need helpp .

Answers

Answer:

the first one

Step-by-step explanation:

Simplify for a = 3, b = -4 and c = -1.
16a-3c+ 5b =

Answers

Answer:

31

Step-by-step explanation:

16(3) - 3(-1) + 5(-4)

48 + 3 - 20

31

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{31}}}}}[/tex]

Step-by-step explanation:

Given, a = 3 , b = -4 and c = -1

To find : Value of the given expression

[tex] \sf{16a - 3c + 5b}[/tex]

plug the values of a , b and c and simplify

[tex] \dashrightarrow \sf {16 \times 3 - 3 \times ( - 1) + 5 \times ( - 4)}[/tex]

[tex] \dashrightarrow{ \sf{48 - ( - 3) + ( - 20)}}[/tex]

[tex] \dashrightarrow{ \sf{48 + 3 - 20}}[/tex]

[tex] \dashrightarrow{ \sf{51 - 20}}[/tex]

[tex] \dashrightarrow{ \sf{31 }}[/tex]

Hope I helped!

Best regards! :D

If a = 3b + 4 and b = 7. what is the value of a ?

Answers

Answer:

a=25

Step-by-step explanation:

a=3x7+4

a=21+4

=25

Answer: A= to 25

Solution: a= 3b + 4 and b= 7 so you plug in the numbers —> 3(7) +4 = a so 3 x 7 = 21 +4 = 25 !

Which expression is equivalent to the given expression?
–5y2 + 507 – 105
O
A. (5y – 35)(-y + 7)
B. –5(y + 21)(y + 1)
C. (-5y + 21) (y – 5)
D. 0 -5(y - 3)(y – 7)

Answers

Answer: the answer is D . -5(y - 3)(y - 7 )

Step-by-step explanation:

That’s the answer .

whats the answer to -3/4=x-6

Answers

Answer:

x = 21/4

x = 5  1/4

Step-by-step explanation:

Hi there !

- 3/4 = x - 6

- 3 = 4(x - 6)

- 3 = 4x - 24

4x = 24 - 3

4x = 21

x = 21/4

x = 5  1/4

Good luck !

On a coordinate plane, point (5, 4) is plotted. What are the coordinates of the point shown on the coordinate plane? x-coordinate = y-coordinate

Answers

Answer:

(5,4)

Step-by-step explanation:

Answer:

5,4 is the Answer.

Step-by-step explanation:

tara bakes 225 cookies in 5 hours, and she uses 8 pounds of sugar. she divide 225 by 5 to grt a rate of 45. which of the following correspond to this rate

Answers

Options :

A cookies per pound

B. O pounds per hour

c. cookies per hour

D. hours per cookie

Answer: C.) Cookies per hour

Step-by-step explanation:

Given the following :

Number of cookies baked = 225 cookies

Total time taken = 5 hours

Amount of sugar used = 8 pounds

Tara divides 225 by 5; 225 / 5 = 45

Rate gives the amount or number of times something occurs within a given period, Hence

The rate obtained by Tara corresponds to the ratio of ; (Total cookies baked / total time taken) = (225 / 5), this translates to the amount or number of cookies baked within an hour.

Answer:

I choose C for mine and was correct :)

Step-by-step explanation:

The main goal of science is to A.Answer all question B.Solve all human problems C,understand our environment or D.You make models of natural phenomena

Answers

Answer:

C,understand our environment

Step-by-step explanation:

The main goal of science is for us to understand our environment. Science as a discipline, seeks to understand and provide us with explanations concerning the environment we live in. Science tells us what makes up the components of our environment, explaining in details how our environment got to the present stage it is, Science describes the reality of our world.

Using the distributive property and combining like terms simplify the expression.
-5(1+2k)+5(x+5k)​

Answers

Answer:

-5+35k+5x

Step-by-step explanation:

An angle measures 176.8° more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

karma

Step-by-step explanation:

An ice cream factory makes 270 quarts of ice cream in 2 hours. How many quarts could be made in 48 hours. What was the rate per day

Answers

Answer:

6480 quarts in 48 hours

3240 quarts in a day(24 hours)

Step-by-step explanation:

2*24 is 48, so then 270*24=6480

and then half of 48 hours is a day so just half of 6480

Answer:

6480 quarts in 48 hours

3240 quarts per day

270*24= 6480

6480/2= 3240

Question 2 (1 point)
What is the slope of the line between (-4,4) and (-1, -2)? (1 point)
1) 1
2) 2
3) -2
4) -1

Answers

slope= -2
so answer is number 3

Answer:

-2

Step-by-step explanation:

(-4, 4) & (-1, -2)

(y₂ - y₁) / (x₂ - x₁)

(-2 - 4) / (-1 + 4)

-6/3 = -2

slope = -2

Use fraction bars and the rules of dividing signed numbers to divide. Negative StartFraction 15 over 5 EndFraction divided by three-fifths Negative StartFraction 18 over 5 EndFraction -9 Negative StartFraction 12 over 5 EndFraction -5

Answers

Answer: it is -5

Step-by-step explanation: i got it right

Answer:

its -5

Step-by-step explanation:

its correct

Which expression is equivalent to 4” x 4-5?
A 412
B) 42
C 4-2
D
4-35

Answers

The answer is 4-2 the c one

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

the median is 2

Step-by-step explanation:

Answer:

Third Option.

Step-by-step explanation:

First Option:

The mode means the option that is selected the most.

There are 7 votes for 1 state, hence 1 is the mode as it is voted the most.

FALSE.

Second Option:

The median means the middle when arranged in numerical order.

Arranging them:

[tex]1,1,1,1,1,1,1,2,2,2,2,2,3,3,5[/tex]

If you look for the middle term, it is 2 which is the median.

Therefore, the median is not 3.

FALSE.

Third Option:

Four out of 5 students lived in only 1 or 2 states.

[tex]\frac{4}{5} *15=12[/tex]

12 students live in only 1 or 2 states.

If we count the number of people living in 1 or 2 states, we get 12.

TRUE.

Fourth Option:

There is no data for 7 states.

FALSE.

Can someone please tell me how to do this not the actual equation but like what type of math is this because my teacher wants me to do this method but I don’t understand it’s %

Answers

So, if you don’t have access to a calculator find the percent of a number is pretty simple. It looks like your teacher what’s you do the the cross multiply method so using this as an example you would take the percent of you’re trying to find (in this case 15) and put that above zero because all percents are out of 100 and are fractions
And you would set that against the number your percent is out of (here it is 7) and set that over x because you don’t know what 7 is 15% of yet
Then you wanna keep your 15/100 and multiply that by your x and set it equal to your 7
15/100 *x = 7
Then you wanna multiply both sides by 100 and divide by 15
This will leave you with x= 46.67
If you have access to a calculator you can just plug in
7/0.15 and get the same answer

Answer:

Step-by-step explanation:

Find the perimeter of angle ABC with verticals A(1,-6), B(1,-3) and C(-4,-6)

Answers

Answer:

its 13.83

Step-by-step explanation:

Use the distance formula and plug them in

X y
1 0
3 8
5 24
7 48

Answers

you will solve this by converting the x and y axis and then dividing by 2 then you will add 5

Which graph has a rate of change of zero? On a coordinate plane, a vertical line is at x = 3. On a coordinate plane, a horizontal line is at y = 3. On a coordinate plane, a line with positive slope goes through (0, 0) and (1, 3). On a coordinate plane, a line with negative slope goes through (negative 1, 3) and (0, 0).

Answers

Answer:

horizontal line y = 3

Step-by-step explanation:

The slope of a line gives the measure of its rate of change.

The horizontal line with equation y = 3 is parallel to the x- axis and has a slope of zero.

Thus y = 3 has a rate of change of zero

Answer:

Horizontal line y = 3.

Step-by-step explanation:

Name the plane that contains A, B, and C​

Answers

Step-by-step explanation:

Plane S contains points A, B and C while Plane T contains points A, D and E.

Hence the answer is Plane S.

*Whoever solves will gat branilest answer so please please help me*
A girl wanted to buy 9 apples but she needed 7 more dollars. So instead bought 3 apples and had $11 leftover. How much money does she have?​

Answers

Answer:

19

Step-by-step explanation:

Answer:

She started with 20 dollars.

Step-by-step explanation:

each apple is 3 dollars because if she bought 3 apples that would be 9 dollars, and 9+11= 20. And if she was trying to buy 9 apples that would equal 27 dollars which means she would need 7 dollars more.

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