SOLUTION: Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2 liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

Question 306189: Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2 liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the number of liters of 100% fruit juice.
Write the concentration equation.

2/5 of a liter (400 ml) of 100% fruit juice.
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