SOLUTION: Suppose you add 70% lemon juice to 1 gallon of 20% lemon juice solution until the mixture becomes 40% lemon juice, how much of the final mixture will you have?

Question 941069: Suppose you add 70% lemon juice to 1 gallon of 20% lemon juice solution until the mixture becomes 40% lemon juice, how much of the final mixture will you have?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
gallons of lemon juice in 20% mix
Let = gallons of 70% mix to be added
= gallons of lemon juice in 70% mix
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The final mixture is 1 and 2/3 gallons
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check:

OK
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