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19 September, 16:56

If y varies directly as x, and y is 6 when x is 72, what is the valueof y when x is 8

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  1. 19 September, 17:04
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    Step-by-step explanation:

    y & x

    y = kx

    When y = 6, x = 72

    6 = 72k

    k = 6/72

    k = 1/12

    : - y = x/12

    When x = 8

    y = 8/12

    y = 2/3
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