SOLUTION: The length of a rectangle is 3 times the width. The perimeter is 56. What is the width?

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Question 514081: The length of a rectangle is 3 times the width. The perimeter is 56. What is the width?
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
L = 3W
2(L+W) = 56
2(3W+W) = 56
4W = 28
W = 7
L = 3*7 = 21