SOLUTION: The cooling system of a car has a capacity of 25 liters. If the system is currently filled with a mixture that is 60% antifreeze, how much of this mixture should be drained and rep
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Question 900685: The cooling system of a car has a capacity of 25 liters. If the system is currently filled with a mixture that is 60% antifreeze, how much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a solution that is 90% antifreeze? Answer by josgarithmetic(39617) (Show Source):
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