SOLUTION: Determine the equation of combined variation. Then solve for the missing value.
x varies directly with y and inversely with z.
x = 5 when y = 10 and z = 5.
Find x when y = 20
Question 1064177: Determine the equation of combined variation. Then solve for the missing value.
x varies directly with y and inversely with z.
x = 5 when y = 10 and z = 5.
Find x when y = 20 and z = 10. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Determine the equation of combined variation. Then solve for the missing value.
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x varies directly with y and inversely with z.
x = k*y/z
Solve for "k" if x = 5 when y = 10 and z = 5.
5 = k*10/5
k = 2.5
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Equation:
x = 2.5*y/z
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Find x when y = 20 and z = 10.
x = 2.5*20/10
x = 5
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Cheers,
Stan H.
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