Question 23918
Length = 2x-3
width = x
Perimeter = 54


SInce the formula for P is 2(l+w)=P


We plug that in.
2(2x-3+x)=54
6x-6=54
6x=60
x=10


2(10)-3=17


Hence the width is 10cm and the length is 17cm.
Paul.