SOLUTION: The length of a rectangle is three times its width. the perimeter of a rectangle is 100 inches. what are the dimensions of the rectangle?

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Question 931642: The length of a rectangle is three times its width. the perimeter of a rectangle is 100 inches. what are the dimensions of the rectangle?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

     .

2L + 2w = 100in

L + w = 50in

(3w) + w = 50in

4w =50

w = 12.5in  and L = 37.5in 3%2A12.5

and...checking

L + w = 50in