Problema Solution
The length of a pool is four more than its width. If the perimeter is 40, what is the width?
Answer provided by our tutors
let the width be x
Length is 4 more than width i.e. x+4
Perimeter is 40
Perimeter = 2(length + width) = 2(x + x+4) = 2(2x + 4) = 4x + 8
4x + 8 = 40
4x = 32
x = 8
Width = 8cm