Mathematics, 16.10.2019 02:20 itsbrizee

Avery large tank initially contains 100 l of pure water. starting at time t=0 a solution with a salt concentration of 0.7kg/l is added at a rate of 6l/min. the solution is kept thoroughly mixed and is drained from the tank at a rate of 4l/min. answer the following questions.

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Avery large tank initially contains 100 l of pure water. starting at time t=0 a solution with a salt...