Question 956192: If z varies directly with x and inversely with y and x=6, y=2, and z=15, find z when x=4 and y=9
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! If z varies directly with x and inversely with y and x=6, y=2, and z=15, find z when x=4 and y=9
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z = k*x/y
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Solve for "k" using "x=6, y=2, and z=15"
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15 = k*6/2
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30 = 6k
k = 5
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Equation:
z = 5*x/y
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find z when x=4 and y=9
z = 5*4/9
z = 20/9
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Cheers,
Stan H.
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