Question

The area of a rectangle is 756 square centimeters. The of the long the width is 7:3. Find the length and the width

Answer 1

18 cm and 42 cm

Explanation:

a = wl

7w = 3l, then l = 7/3w

756 = w(7/3w)

756 = 7/3w²

w² = 324

w = 18

l = 42