SOLUTION: A rectangle is three times as long as it is wide. The perimeter is 224 feet. Find the dimensions

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Question 1068783: A rectangle is three times as long as it is wide. The perimeter is 224 feet. Find the dimensions
Answer by addingup(3677) About Me  (Show Source):
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2L+2W = Perimeter
L = 3W substitute for L above:
2(3W)+2W = 224
6W+2W = 224
8W = 224
W = 28
and
L = 3(28) = 84