SOLUTION: how do i express the relation of the cost (c) of a plane trip varies directly as the distance (d) covered?

Question 363834: how do i express the relation of the cost (c) of a plane trip varies directly as the distance (d) covered?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how do i express the relation of the cost (c) of a plane trip varies directly as the distance (d) covered?
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c = kd
where k is the constant of variation.
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If c and d were indirectly related the answer
would be c = k/d
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Cheers,
Stan H.
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