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27 October, 09:39

The variables x and y vary inversely, and y = 5 when x=2. Write an equation that relates x and y. Then find y when x = - 1.

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  1. 27 October, 09:46
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    y = a/x

    5 = a/2

    a = 10

    y = 10/x

    y = 10/-1 = - 10
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