Problema Solution
The perimeter of a rectangle is 120 inches. Find the length and the width if the length is three times the width.
Answer provided by our tutors
let 'w' represent the width, then '3w' represents the length
perimeter = 2(length + width)
120 = 2(w + 3w)
60 = 4w
w = 60/4 = 15
3*15 = 45
the width is 15 inches, the length is 45 inches