Question 669505: Courtney wants to mix 30% alcohol with 70% alcohol to form 10 liters of 40% alcohol. How many liters of each should she use? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Courtney wants to mix 30% alcohol with 70% alcohol to form 10 liters of 40% alcohol. How many liters of each should she use?
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Equation:
alc + alc = alc
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0.30x + 0.70(10-x) = 0.40*10
30x + 70*10 - 70x = 40*10
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-40x = -30*10
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x = (3/4)10
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x = 7.5 liters (amt. of 30% solution needed)
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10-x = 2.5 liters (amt. of 70% solution needed)
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Cheers,
Stan H.
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