Question

The length of a rectangular pool is 4 meters less than twice the width. if the pool's perimeter is 94 meters, what is the width?

Answer 1

see below

Explanation:

length = x

width = y

x = 2y -4

2*(x+y) =94

x+y = 47

so x = 47-y

so 47-y= 2y -4

so 3y = 51

y = 17

x=30