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30 September, 13:25

The area of a rectangle is 63m squared, and the length of the rectangle is 5 m more than twice the width. Find the dimensions of the rectangle

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  1. 30 September, 13:45
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    Given:

    Area (A) = 63m^2

    Length (L) = 2W+5

    Width (W) = ?

    A=LxW

    63 = (2W+5) (W)

    63=2W^2 + 5W

    0=2W^2+5W-63

    0 = (2W-9) (W+7)

    2W-9=0 then W=4.5 and W+7=0 then W=-7

    Can only use 4.5 since it is positive and distance is positive.

    W = 4.5 m

    L=2W+5=2 (4.5) + 5=9+5=14m
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