Question

Write a linear equation to represent the given problem and then solve the problem.

The perimeter of a rectangle is 150 cm. The length is 15 cm greater than the width. Find the dimensions.

Perimeter = 2 x Length + 2 x Width

Answer 1

w=L+15

p=(L+w)

150cm=L+L+15

150cm=2L+15

2L=150cm-15

2L=135cm

2L÷2=135cm÷2

L=67.5

w=67.5+15

w=82.5