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If Y is 5 when x is 2.5 and y varies directly with x find y when x is 10?
Wiki User
∙ 14y ago
y varies directly with x means y = kx, where k is the constant of the variation.
When x = 2.5 and y = 5, we have
y = kx
5 = 2.5k
k = 2
When x = 10,
y = kx
y = (2)(10)
y = 20
Wiki User
∙ 14y ago
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