Question 453153
y varies directly as x
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ly = kx
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Solve for "k" using "y=27 when x=4":
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27 = k*4
k = 27/4
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Now the equation is
y = (27/4)x
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Problem:: Find y when x=12 
y = (27/4)12
y = 3*27
y = 81
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Cheers,
Stan H.
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