A tank contains 1000 liters of pure water. Brine that contains 0.05 kg of salt per liter of water enters the tank at a rate of 8 liters per minute. Brine that contains 0.04 kg of salt per liter of water enters the tank at a rate of 5 liters per minute. The well-mixed solution drains from the tank at a rate of 13 liters per minute. How much salt is in the tank after:
(a) $t$ minutes?
(b) half an hour?
(c) a very long time?

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The Answer of A tank contains 1000 liters of pure water. Brine that contains 0.05 kg of salt per liter of water enters the tank at a rate of 8 liters per minute. Brine that contains 0.04 kg of salt per liter of water enters the tank at a rate of 5 liters per minute. The well-mixed solution drains from the tank at a rate of 13 liters per minute. How much salt is in the tank after:
(a) $t$ minutes?
(b) half an hour?
(c) a very long time?

A Tank Contains 1000 Liters of Pure Water ttt Minutes? (B) Half an Hour? (C) a Very Long Time

A Tank Contains 1000 Liters of Pure Water $t$ Minutes?
(B) Half an Hour?
(C) a Very Long Time