SOLUTION: The length of a rectangle is 6 cm more than double the width. If the perimeter is 30 cm, what is the length of the rectangle?
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Question 787866: The length of a rectangle is 6 cm more than double the width. If the perimeter is 30 cm, what is the length of the rectangle? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The length of a rectangle is 6 cm more than double the width. If the perimeter is 30 cm, what is the length of the rectangle?
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Let width = "x"::
Then length = "2x+6"
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Equation:
P = 2(L + W)
30 = 2(2x+6 + x)
15 = 3x+6
3x = 9
x = 3 cm
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Width = x = 3 cm
Length = 2x+6 = 2*3+6 = 12 cm
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Cheers,
Stan H.
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