A large tank contains 20 liters of pure water. Then a process begins where water containing 50 grams per liter of salt is pumped into the tank at a rate of 3 liters per minute. The well-mixed tank is drained at 2 liters per minute. Let y(t) be the amount of salt (in grams) in the tank at t>0 minutes since the pumping began. Set up an Initial Value Problem (IVP) for y(t) that models this situation. You DO NOT need to solve the IVP.

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