The length of a rectangle is five more than twice the width. The perimeter is 130. What is the are?

Question

I have a quiz tomorrow and I need to do well

Answer 1

l=2w+5

2l+2w=130

2(2w+5)+2w=130   (substitution)

4w+10+2w=130

6w=120

w=20

l=2w+5=2(20)+5=40+5=45

 

area = l*w=20*45 =900