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16-02-2016
Mathematics

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Variable y varies directly with variable x, and y = 18 when x = 4. What is the constant of variation in decimal form?

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Аноним Аноним

16-02-2016

To find the constant of variation, you must use the following equation:

y = kx

'k' is the constant of variation.

y = 18
x = 4
k = ?

18 = k(4)
18/4 = k
k = 4.5

Answer: The constant of variation is 4.5

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