SOLUTION: The variable Z is directly proportional to X, and inversely proportional to Y. When X is 10 and Y is 4, Z has the value 47.5.
What is the value of Z when X = 13, and Y = 10
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Question 981254: The variable Z is directly proportional to X, and inversely proportional to Y. When X is 10 and Y is 4, Z has the value 47.5.
What is the value of Z when X = 13, and Y = 10
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Hi there,
The variable Z is directly proportional to X,
and inversely proportional to Y.
Z = kX/Y (Where k is the factor of proportionality)
47.5 = k10/4
(47.5 x 4)/10 = k
k = 19
Formula:
Z = 19X/Y
Z = (19 x 13)/10
Z = 24.7
Hope this helps:-)
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