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24 December, 23:07

Suppose x varies directly with y and inversely with z. If x=14 when y=49 and z=7, then what is x when y=18 and z=6?

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  1. 24 December, 23:23
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    Step-by-step explanation:

    x varies directly with y and inversely with z:

    x = ky/z

    x = 14 when y = 49 and z = 7.

    14 = k (49) / (7)

    k = 2

    When y = 18 and z = 6:

    x = 2 (18) / (6)

    x = 6
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