SOLUTION: How much pure antifreeze needs to be added to 15 gallons of 40% antifreeze solution to make a 50% solution

SOLUTION: How much pure antifreeze needs to be added to 15 gallons of 40% antifreeze solution to make a 50% solution

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Question 921722: How much pure antifreeze needs to be added to 15 gallons of 40% antifreeze solution to make a 50% solution
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of pure antifreeze to be added
gallons of antifreeze in 40% mixture
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3 gallons of pure antifreeze must be added
check:

OK
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