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13 January, 23:39

Suppose that Y varies directly with X and Y equals 14 when X equals 49. Find the value of Y when X equals 42

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  1. 14 January, 02:37
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    The equation that would best represent the relationship of the given variables in this item is,

    Y = kX

    where k is the constant of proportionality.

    Substituting the first set of given,

    14 = k (49)

    The value of k is 2/7.

    Solving for the Y of the second set,

    Y = (2/7) (42)

    Y = 12

    Answer: 12
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