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25 February, 07:25

Assume that y varies inversely with x. If y=6.4when x=4.4, find y when x=3.2

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  1. 25 February, 09:08
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    Because y varies inversely with x, let

    y = k/x

    where k = constant.

    When x=4.4, y=6.4. Therefore

    k/4.4 = 6.4

    k = 6.4*4.4 = 28.16

    The required relation is

    y = 28.16/x

    When x = 3.2, obtain

    y = 28.16/3.2 = 8.8

    Answer: 8.8
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