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26 January, 06:23

A rectangle has length 72 cm and width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm.

Find the constant of variation.

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  1. 26 January, 07:23
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    A = l*w

    A = 72 * 56

    A = 4032

    4032 = L*21

    4032/21 = L

    L = 192

    scale factor:

    w1/w2

    56/21

    divide top and bottom by 7

    8/3
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