Question

A contractor is pouring a concrete driveway. The perimeter is 108 ft. What length will the driveway be if the width is 14 ft.?

Answer 1

The answer is length=40ft

Answer 2

Length = 40 ft.

Explanation:

Perimeter P = 2L + 2W where L = the length and W = the width.

So we plug in W = 14 and P = 105:

108 = 2L + 2(14)

108 - 28 = 2L

2L = 80

L = 40.