Problema Solution
The length of a rectangle is 4 meters less than 2 times the width. The perimeter is 40 meters. Find the width.
Answer provided by our tutors
let 'w' represent the width, then '2w-4' represents the length
perimeter = 2(l+w), where 'l' is length and 'w' is width
40 = 2(w + 2w-4)
3w - 4 = 20
w = 24/3 = 8
2*8 - 4 = 12
the width is 8 meters, the length is 12 meters