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11 August, 22:10

The length of a rectangle is 1ft less than 3 times the width. There is 310 ft squared. Find the dimension of the rectangle.

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  1. 11 August, 22:53
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    Answer:310

    Step-by-step explanation:

    l=-1+3w

    l=3w-1

    l*w=310

    (3w-1) * w=310

    3w^2-w-310=0

    w = 31/3

    w = 10 1/3

    l=31/3*3-1

    l=30

    30*31/3=10*31=310
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