Find the width of a rectangle with a perimeter of 90 and a length of 15. Draw and label the rectangle first to set up your problem.

Question

(1 point)
Responses

90
90

15
15

45
45

30

Answer 1

The width of the rectangle can be found by subtracting the length from the perimeter, and then dividing by 2.

Perimeter = 2(length + width)
90 = 2(15 + width)
90 = 30 + 2w
2w = 90 - 30
2w = 60
w = 60/2
w = 30

Therefore, the width of the rectangle is 30.

Here is a representation of the rectangle:

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