SOLUTION: the length of the rectangle is three times its width if the area of the rectangle is 300 inches squared then what's its perimeter

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Question 907807: the length of the rectangle is three times its width
if the area of the rectangle is 300 inches squared then what's its perimeter
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

     .

(3w)w = 300in^2

 3w^2 = 300

w^2 = 100 (Tossing out the negative solution for unit measure)

 w = 10in  and L = 30in

P = 80in