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22 February, 12:33

A rectangle has a width represented by x and length represented by 4x. it the area of the rectangle is 80, find the value of x

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  1. 22 February, 13:01
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    Area = length * width = 4x * x = 4x^2.

    4x^2 = 80

    x^2 = 80/4 = 20

    x = sqrt 20

    Answer is 4.47 to nearest hundredth.
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