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17 November, 14:14

What is the value of x=9

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  1. 17 November, 17:48
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    Inversely proportional means that the relation between y and x is of the form

    y = c/x

    where c is a constant.

    Get c from knowing y=42 when x=6.

    42 = c/6

    Then c = 6*42 = 252

    Therefore,

    y = 252 / x

    For x=9,

    y = 252/9 = 28
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