SOLUTION: How many mL of 70% alcohol should be mixed with 20 mL of 20% alcohol to prepare 50% alcohol?
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Question 788848: How many mL of 70% alcohol should be mixed with 20 mL of 20% alcohol to prepare 50% alcohol?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Let v = mL of the 70% alcohol to use
Solve for v.
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