SOLUTION: How much pure antifreeze should be added to a radiator that contains 10 gallons of 20% antifreeze solution to produce a 50% antifreeze solution? [Hint: Pure antifreeze is 100% anti

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 Question 368372: How much pure antifreeze should be added to a radiator that contains 10 gallons of 20% antifreeze solution to produce a 50% antifreeze solution? [Hint: Pure antifreeze is 100% antifreeze.]Answer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website!Let A be the amount of 100% antifreeze. gallons