The length of a rectangle is 1 meter more than twice it’s width. What is the length of the rectangle if it’s perimeter is 110 meters?

Question

find the missing length

Answer 1

Let's l stands for length and w for width. Then

l-1=2w and perimeter: p=2(l+w)=110

So we have 

  l -2w =1

2l+2w=110

Solve this system of equations and find l and w.

3l=111

l=37

and 

w=18