Question

The perimeter of a fence is 64 feet. The length is 4 feet less than twice the width. What is the length of the fence?

Answer 1

20 feet

Explanation:

let the width be x

length = 2x-4

perimeter = 2 length + 2 width = 2(2x-4)+2x = 4x-8+2x = 6x-8

6x-8 = 64

6x = 72

x = 12

length = 2x-4 = 2(12)-4 = 20