SOLUTION: A rectangle is 3 times as long as it is wide. The perimeter is 16 feet. Find the dimensions.

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Question 901769: A rectangle is 3 times as long as it is wide. The perimeter is 16 feet. Find the dimensions.
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
P = 2l + 2w
16 = 2(3x) + 2x
16 = 6x + 2x
16 = 8x
16/8 = x
2 = x
Can you take it from here?