Question

A rectangle has a total perimeter of 108cm. The length is 5 times the width. The dimensions would be 45cm x 9cm, right?

Answer 1

NO, the dimensions would be (rounded) 23.25 x 4.65

Answer 2

First lets represent
P=perimeter
x=width
5x=length
lxw=p
5x(x)=108
5x^2=108
x^2=21.6
x=4.65cm