SOLUTION: The length of a rectangle is six more than twice the width. If the area is 20 square inches, find the dimensions of the rectangle.
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Question 982401: The length of a rectangle is six more than twice the width. If the area is 20 square inches, find the dimensions of the rectangle.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The length of a rectangle is six more than twice the width. If the area is 20 square inches, find the dimensions of the rectangle.
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width = w
length = 2w+6
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Equation:
w(2w+6) = 20
2w^2+6w-20 = 0
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w^2 + 3w - 10 = 0
(w+5)(w-2) = 0
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Positive solution::
width = 2 inches; then length = 2*2+6 = 10 inches
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Cheers,
Stan H.
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