Mathematics, 09.02.2021 05:30, orlando19882000

A tank contains 200 gal of salt water at a concentration of 5 lb/gal. Salt water at a concentration of 1 lb/gal is pumped into the tank at a rate of 2 gal/min, and the well-stirred mixture runs out at a rate of 2 gal/min. How much salt is in the tank after t min?

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