Problema Solution
The length of a rectangle is 8 centimeters less than 5 times its width. Its area is 21 square centimeters. Find the dimensions of the rectangle.
Answer provided by our tutors
let 'w' represent the width, then '5w-8' represents the length
area = length * width
21 = w(5w-8)
solving for 'w' we have a positive value w=3
5*3-8 = 7
the width is 3 cm, the length is 7 cm