SOLUTION: If there is 3 liters of 70% fruit juice, how much 20% fruit juice do you have to add to get a 60% fruit juice concentrate?

Question 758216: If there is 3 liters of 70% fruit juice, how much 20% fruit juice do you have to add to get a 60% fruit juice concentrate?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If there is 3 liters of 70% fruit juice, how much 20% fruit juice do you have to add to get a 60% fruit juice concentrate?
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Equation:
active + active = active
0.70*3 + 0.20x = 0.60(3+x)
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70*3 + 20x = 60*3 + 60x
-40x = -10*3
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x = 3/4 liters (amt. of 20% juice needed)
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Cheers,
Stan H.
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