A tank contains 360 liters of fluid in which 40 grams of salt are dissolved. Brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6L/min ; the well mixed solution is pumped out at the same rate. Find the number A(t) of grams of salt in the tank at time t.

A tank contains 360 liters of fluid in which 40 grams of salt are dissolved. Brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6L/min ; the well mixed solution is pumped out at the same rate. Find the number A(t) of grams of salt in the tank at time t.

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A tank contains 360 liters of fluid in which 40 grams of salt are dissolved. Brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6L/min ; the well mixed solution is pumped out at the same rate. Find the number A(t) of grams of salt in the tank at time t.

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