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13 January, 19:28

The variables x and y vary inversely. which equation relates x and y when x=9 and y=3

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  1. 13 January, 19:56
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    Since x & y vary inversely (it means when x increases, y decreases & vice versa)

    Then the equation==> y = k/x (k is a constant to be calculated)

    But x=9 and y=3 (given) = = > 3=k/9 or k=27 & the equation becomes y=27/x
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