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28 January, 17:50

Y varies inversely as x. if x = 7 then y = 6. Find y when x = 4.

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  1. 28 January, 19:45
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    Answer

    10.5

    Explanation

    Y varies inversely as x

    Y ∝ 1/x

    Y = k/x K is the the constant of variation

    k = Yx

    = 6 * 7 = 42

    Y = 42/x

    Y = 42 / 4

    = 10.5
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