SOLUTION: The length of a rectangle is 1 less than three times it's width. The perimeter is 30 feet. Find the length of this rectangle
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Question 723132: The length of a rectangle is 1 less than three times it's width. The perimeter is 30 feet. Find the length of this rectangle
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The length of a rectangle is 1 less than three times it's width. The perimeter is 30 feet. Find the length of this rectangle
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Let width be "x".
Then length = "3x-1".
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Equation:
Perimeter = 2(length + width)
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30 = 2(3x-1+x)
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15 = 4x-1
4x = 16
x = 4
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length = 3x-1 = 3*4-1 = 11 feet
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Cheers,
Stan H.
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