SOLUTION: An artificial lake is in the shape of a rectangle and has an area of 9/20 square mile. The width of the lake is 1/5 the length of the lake. What are the dimensions of the lake?

Question 840118: An artificial lake is in the shape of a rectangle and has an area of 9/20 square mile. The width of the lake is 1/5 the length of the lake. What are the dimensions of the lake?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
An artificial lake is in the shape of a rectangle and has an area of 9/20 square mile. The width of the lake is 1/5 the length of the lake. What are the dimensions of the lake?
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Let the length be "L"
Then the width = (1/5)L
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Equation:
L(L/5) = 9/20
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L^2 = 9/4
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Lenght = 3/2 = 1.5 miles
Width = (1/5)(3/2) = 3/10 = 0.3 miles
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Cheers,
Stan H.
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