Question 981073
The variable Z is directly proportional to X, 
and inversely proportional to Y. 
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Z = K*X/Y
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When X is 3 and Y is 6, Z has the value 9.5.
Solve for "K"::
9.5 = K*3/6
K = 19
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What is the value of Z when X = 8, and Y = 12
Equation:
Z = 19*X/Y
Z = 19*8/12
Z = (2/3)19 = 38/3 = 12 2/3
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Cheers,
Stan H.
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