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30 August, 12:53

Leo wants to paint a mural that covers a wall with an area of 800 square feet. The height of the wall is 1 / 2 of its length. What is the length and the height of the wall?

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  1. 30 August, 13:04
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    Area. = length x height

    Let x = Length

    The height is 1/2x

    800 = x * 1/2x

    Simplify:

    800 = 1/2x^2

    Multiply both sides by 2:

    1600 = x^2

    Take the square root of both sides:

    X = sqrt (1600)

    X = 40

    1/2x = 20

    Length = 40 feet

    Height = 20 feet
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