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21 January, 09:19

The length of a rectangle is 2 cm less than 7 times the width. The perimeter is 60 cm. Find the width and length.

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  1. 21 January, 09:31
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    Lets assume width=x. Then lenght its 7*x-2

    We know that perimeter its 2*length+2*width=60

    Now we substitute our x and 7x-2

    2 * (7x-2) + 2x=60

    14x-4+2x=60 / + 4

    16x=64 / : 16

    x=4 - its the width

    7*x-2, where x=4

    28-2=26 - length
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