SOLUTION: What is the perimeter of a rectangle if the area is 27 square inches and the length is three times it's width?

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Question 1045987: What is the perimeter of a rectangle if the area is 27 square inches and the length is three times it's width?
Found 2 solutions by addingup, MathTherapy:
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
Perimeter P = 2W+2L
L = 3W Substitute above:
2W+2(3W) = 27
2W+6W = 27
8W = 27
W = 3.375 or 3 3/8
L = 3(3.375) = 10.125 or 10 1/8

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

What is the perimeter of a rectangle if the area is 27 square inches and the length is three times it's width?
Perimeter: 2(3) + 2(9) = highlight_green%28matrix%281%2C2%2C+6+%2B+18+=+24%2C+inches%29%29