SOLUTION: The area of a rectangle is 28 square meters. If the length is 2 times the width, then find the length and width of the rectangle. Round off your answers to the nearest hundredth

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The area of a rectangle is 28 square meters. If the length is 2 times the width, then find the length and width of the rectangle. Round off your answers to the nearest hundredth       Log On


   

Question 1105028: The area of a rectangle is 28 square meters. If the length is 2 times the width, then find the length and width of the rectangle. Round off your answers to the nearest hundredth
Answer by stanbon(75887) About Me  (Show Source):
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The area of a rectangle is 28 square meters. If the length is 2 times the width, then find the length and width of the rectangle. Round off your answers to the nearest hundredth
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Let width = x
Then length = 2x
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Equation:
x*(2x) = 28 m^2
2x^2 = 28
x^2 = 14
x = sqrt(14)m that is the width
2x = 2*sqrt(14)m that is the length
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Cheers,
Stan H.
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