Mathematics, 25.02.2020 02:26 coopera1744

A car radiator needs a 40% antifreeze solution. The radiator now holds 56 liters of a 30% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?

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A car radiator needs a 40% antifreeze solution. The radiator now holds 56 liters of a 30% solution....