SOLUTION: B varies directly as m and inversely n. B=27 when m=72 and n=8, find B when m=9 and n=4
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Question 999495: B varies directly as m and inversely n. B=27 when m=72 and n=8, find B when m=9 and n=4
(Variations?) Found 2 solutions by stanbon, solver91311:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! B varies directly as m and inversely n. B=27 when m=72 and n=8, find B when m=9 and n=4
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b = k*m/n
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Solve for "k"::
27 = k*72/8
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27 = k*9
k = 3
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Equation:
B = 3*m/n
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B = 3*9/4
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b = 27/4 = 6 3/4
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Cheers,
Stan H.
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Substitute the given initial values of the three variables, then solve for .
Once you have a value for , you can substitute it into the original equation, giving you a formula to solve for any one of the variables given the other two.
John
My calculator said it, I believe it, that settles it
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