SOLUTION: how do you solve the problem: a varies jointly with b and c. if a=120 b=8 and c=5 write an equation relating the variables then solve for a when b=-4 and c=9
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Question 526017: how do you solve the problem: a varies jointly with b and c. if a=120 b=8 and c=5 write an equation relating the variables then solve for a when b=-4 and c=9
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a varies jointly with b and c. if a=120 b=8 and c=5 write an equation relating the variables then solve for a when b=-4 and c=9
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a = kb*c
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solve for "k" using a = 120 when b = 8 and c = 5
120 = k*8*5
k = 3
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Equation:
a = 3*b*c
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Solve for "a" when b = -4 and c = 9
a = 3*-4*9
a = -108
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Cheers,
Stan H.
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