Question

A parallelogram is shown.

https://d3upxwx9bggvi1.cloudfront.net/img/questions/aced4_1_9.png

Select the equation that can be used to find the side length, c , given the perimeter, P , and length b

A. c=2P+2b

B. c = P−2b/2

C. c = P+2b/2

D. c=2P−2b

Answer 1

@Vocaloid

Answer 2

Hint: P = 2b + 2c

Solve for c

Answer 3

c = −b + 1/2p

Answer 4

Good but we can rewrite this another way

Answer 5

Multiplying the numerator and denominator by 2 gives us

(-2b + p)/2

Answer 6

Which matches b

Answer 7

it's A

Answer 8

I have just stated it is b

Answer 9

OH I'M SORRY

Answer 10

it's B

Answer 11

Good

Answer 12

An equation is shown.

2x−4y=8

Solve the equation for x in terms of y.

A. x=4−2y


B. x=4+4y


C. x=8+2y


D. x=4+2y

Answer 13

Start by solving for x

Answer 14

it's D

Answer 15

x=2y+4 btw

Answer 16

Good d

Answer 17

The formula for calculating simple interest relates the amount of interest, I, to the principal, p, the interest rate, r, and the time, t. It is represented by the following equation.

I=prt

Which equation can be used to find the principal if you know the amount of interest earned, the interest rate, and the time?

A. p = I/rt

B. p = rt/I

C. p=Irt

D. p=I−rt

Answer 18

Solve the equation for p

Answer 19

it's A

Answer 20

Good

Answer 21

The price of a movie ticket is $8 for an adult and $5 for a child. The following equation represents the total cost, c, of buying x number of adult tickets and y number of child tickets.

c=8x+5y

Which equation can be used to find the number of child tickets purchased if you know the total cost and the number of adult tickets purchased?

A. y = c−8x/5

B. y = c+8x/5

C. y=5c−8x

D. y=c−40x

Answer 22

We are looking for adult tickets so solve for y

Answer 23

it's A

Answer 24

Good

Answer 25

An equation is shown.

2(a+b)=c

Solve the equation for b in terms of a and c. Explain your answer.

A. b=c−2−a; subtract both 2 and a from each side.


B. b=c−2a; distribute 2 to get 2a+b, then subtract 2a from each side.


C. b=c+2a/2; distribute 2 to get 2a+2b, add 2a, then divide by 2.


D. b = c−2a/2 ; distribute 2 to get 2a+2b, subtract 2a, then divide by 2.

Answer 26

Solve for b

There's only one answer choice that matches

Answer 27

it's D

Answer 28

Good

Answer 29

This table shows input and output values for a linear function f(x) .



What is the difference of outputs for any two inputs that are one value apart?


A. −1

B. 0.25

C. 0.5

D. 1

Answer 30

i'll send the picture hold on

Answer 31

f(x) is increasing by the same value each time, what is that value?

Answer 32

-0.5

Answer 33

It is increasing so we take the positive value 0.5 = your answer

Got to go take cate