SOLUTION: How many gallons of a 60% solution should Angela add to 30 gallons of a 10% solution to produce a 40% solution?
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Question 892994: How many gallons of a 60% solution should Angela add to 30 gallons of a 10% solution to produce a 40% solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of 60% solution needed
= gallons of concentrate in 60% solution
= gallons of concentrate in 10% solution
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45 gallons of 60% solution must be added
check:
OK
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