Question

The length of a rectangle, l, is six meters more than its width, w. If the perimeter of the rectangle is 36 meters, what is the length of the rectangle, in meters? A. 12 B. 6 C. 15 D. –12

Answer 1

okay well l = w+6....perimeter = 36..that means 2l + 2w = 36
is l = w+6...plug that into the second equation

2(w + 6) + 2w = 36
2w + 12 + 2w = 36
4w + 12 = 36
4w = 24
w = 6

now check...if w is 6...and l = w + 6...then l must equal 12....now back into the other formula

2w + 2l = 36
2(6) + 2(12) = 36
12 + 24 = 36
36 = 36

so it checks out

Answer 2

What is a possible first step in solving the following equation for x?

4x – 5 + 6x = 6
A.
Divide both sides by 6.
B.
Combine like terms.
C.
Subtract 5 from both sides.
D.
Subtract 6 from both sides.

Answer 3

well...what could you do?
could you add 5 to both side? yeah
could you combine like terms? yeah
would you divide both sides by 6? i see no reason why you would
would you subtract 6 from both sides? again ...no reason to

your pick

Answer 4

a

Answer 5

no b

Answer 6

like terms

Answer 7

That's right.

Answer 8

what

Answer 9

B

Answer 10

k

Answer 11

At her job, Mary works 4 hours on Monday, 3 hours on Wednesday, and 6 hours on Saturday. Her boss adds a $10 bonus to her paycheck, which then totals $120.50. What is Mary's hourly pay?
A.
$8.50
B.
$9.27
C.
$5.24
D.
$8.05

Answer 12

C

Answer 13

k

Answer 14

In solving an equation for x, you distribute a –4 on one side of the equation. What needs to be done to the other side of the equation?
A.
multiply by 4
B.
add –4
C.
subtract 4
D.
nothing

Answer 15

D

Answer 16

At his job, Rob works 6 hours on Monday, 7 hours on Tuesday, and 2 hours on Friday. He receives a $15 bonus, which causes his weekly paycheck to total $153.75. What is Rob's hourly pay?
A.
$8.00
B.
$9.25
C.
$10.25
D.
$10.75

Answer 17

Give me a medal for helping you.

Answer 18

ok

Answer 19

At his job, Rob works 6 hours on Monday, 7 hours on Tuesday, and 2 hours on Friday. He receives a $15 bonus, which causes his weekly paycheck to total $153.75. What is Rob's hourly pay?
A.
$8.00
B.
$9.25
C.
$10.25
D.
$10.75

Answer 20

A