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11-12-2017
Mathematics

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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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Yna9141 Yna9141

25-12-2017

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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