SOLUTION: The perimeter of a rectangle is 120 feet. Use an equation to find the length and width of the rectangle if the length is twice the width.

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Question 376166: The perimeter of a rectangle is 120 feet. Use an equation to find the length and width of the rectangle if the length is twice the width.
Answer by Jk22(389) About Me  (Show Source):
You can put this solution on YOUR website!
let w be the width and l the length, the perimeter is p=2*(w+l)

but l=2*w, then p=2*(w+2w)=2*3*w=6w=120feet

we get : width=20feet, length=40feet