SOLUTION: The length of a rectangular deck is 4 times its width. If the decks perimeter is 30ft, what is the decks area?

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Question 811026: The length of a rectangular deck is 4 times its width. If the decks perimeter is 30ft, what is the decks area?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2x+2(4x)=30
10x=30
x=3
4x=12
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3*12=36 sq ft