SOLUTION: 17. Suppose y varies inversely with x, and y=15 when x=40. Find an equation of variation for x and y. I appreciate your help in this very much.

Algebra ->  Rational-functions -> SOLUTION: 17. Suppose y varies inversely with x, and y=15 when x=40. Find an equation of variation for x and y. I appreciate your help in this very much.       Log On


   

Question 635831: 17. Suppose y varies inversely with x, and y=15 when x=40. Find an equation of variation for x and y.
I appreciate your help in this very much.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose y varies inversely with x
y = k/x
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Solve for "k" using "y=15 when x=40"
15 = k/40
k = 600
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Find an equation of variation for x and y.
Equation:
y = 600/x
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Cheers,
Stan H.
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