moslem2575 moslem2575

17-05-2017
Mathematics

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

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mreijepatmat mreijepatmat

17-05-2017

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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