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What direct variation equation relates x and y when x is 3 and y is 30?
Wiki User
∙ 11y ago
Suppose y = c*x where c is the constant of proportionality.
x = 3 and y = 30 so 30 = c*3 which implies that c = 10.
So the equation is y = 10*x
Wiki User
∙ 11y ago
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