Mathematics, 08.02.2021 01:40 thomasdianne

A service station checks Mr. Smith's radiator and finds it contains only 40% antifreeze. If the radiator holds 20 quarts and is full, how many quarts must be replaced with pure antifreeze in order to bring it up to a required 80% antifreeze?

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A service station checks Mr. Smith's radiator and finds it contains only 40% antifreeze. If the radi...

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