SOLUTION: If M varies directly as n, and m=9, when n=6, find m when n=15

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Question 768903: If M varies directly as n, and m=9, when n=6, find m when n=15
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If M varies directly as n, and m=9, when n=6, find m when n=15
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M = kn
Solve for "k" using m = 9 when n = 6.
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9 = k*6
k = 3/2
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Equation:
M = (3/2)n
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find m when n = 15
M = (3/2)15
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M = 45/2 = 22.5
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Cheers,
Stan H.
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