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4 October, 06:03

Find the length and the width of a rectangle if the perimeter is 70 m and the length is sixsix times the width.

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  1. 4 October, 06:19
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    L=6w

    70=2 (l+w)

    Use substitution

    70=2 (6w+w)

    70=2 (7w)

    35=7w

    w=5

    Plug this in to the first equation.

    l=6 (5)

    l=30

    Final answer: length=30 m, width=5 m
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