Question

the perimeter of a rectangular pool 160 meters. The length of the pool is 20 meters more than it's width. What is the length?

Answer 1

2(2w + 20) = 160

4w + 40 = 160

4w = 160 - 40

4w = 120

w = 120/4

w = 30

l = w + 20
l = 30 + 20
l = 50

the length is 50 and the width is 20.

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