The length of a rectangle is six less than three times the width. If the perimeter is 60 cm, what are the dimensions of the rectangle?

Answer 1

L=3W -6

P=2(L+W)= 60

L+W = 60/2 = 30

L=30-W = 3W-6

4W = 36

W = 36/4 = 9 cm

L =30-9 = 21 cm

the rectangle's dimensions are 9 by 21 cm