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20 January, 02:56

Y varies jointly as X and z. Y=75 when X equals 5 and Z equals 5. Find Y when x=7 and z=3

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  1. 20 January, 03:20
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    First find the k value

    75 = k (5) (5)

    75=k*25

    k=3

    Plug the k value in with the other set of values

    y=3*7*3

    y=21*3

    y=63

    Final answer: 63
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