SOLUTION: The length of a rectangle is three times the width. The perimeter of the rectangle measures 72 inches. How long is the length of this rectangle?

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Question 248830: The length of a rectangle is three times the width. The perimeter of the rectangle measures 72 inches. How long is the length of this rectangle?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The length of a rectangle is three times the width. The perimeter of the rectangle measures 72 inches. How long is the length of this rectangle?
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Let the width be "x" inches.
Then the length is "3x" inches.
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Perimeter = 3(length + width)
72 = 2(3x+x)
24 = 4x
x = 6 inches (width)
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3x = 18 inches (length)
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Cheers,
Stan H.