Question 974009
One canned juice drink is 30% is orange juice, another is 10% orange juice. How many liters of each should be mixed together in order to get 20 Liters that is 21% orange juice? 
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Equation:
orange + orange = orange
0.30x + 0.10(20-x) = 0.21*20
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30x + 10*20 - 10x = 21*20
20x = 11*20
x = 11 liters (amt. of 30% solution needed)
20-x = 9 liters (amt. of 10% solution needed)
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Cheers,
Stan H.
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