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22 September, 08:51

The variables x and y vary inversely. When y is 10, x is 10. What is x when y is 20

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  1. 22 September, 12:49
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    inversely

    y = k/x

    k = yx

    k = 10*10 = 100

    when y = 20

    20 = 100/x

    20x = 100

    x = 5

    answer

    x = 5 when y is 20
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