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Mathematics 17 Online
OpenStudy (anonymous):

Variable y varies directly with variable x, and y = 20 when x = 8. Enter the constant of variation in lowest terms.

OpenStudy (igreen):

y = kx Plug in what we know: 20 = k(8) 20 = 8k Divide 8 to both sides, what's 20 / 8?

OpenStudy (igreen):

Can you divide that? @Fadeaway

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