SOLUTION: The area of a rectangle is 144 square meters. The length of the rectangle is three times the width. What is the length and width of the rectangle?

Algebra ->  Rectangles -> SOLUTION: The area of a rectangle is 144 square meters. The length of the rectangle is three times the width. What is the length and width of the rectangle?      Log On


   

Question 357590: The area of a rectangle is 144 square meters. The length of the rectangle is three times the width. What is the length and width of the rectangle?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Area = l * w
l = 3w
Area = 144 = w * 3w
3w%5E2+=+144
w%5E2+=+48
w+=+sqrt%2848%29
l+=+3sqrt%2848%29