Consider a reservoir with a volume of 8 billion ft and an initial pollution concentration of...

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Consider a reservoir with a volume of 8 billion ft³ and an initial pollution concentration of 0.25%. There is a daily inflow of 500 million ft3³ with a pollution concentration of 0.05% and an equal daily outflow of the well-mixed water (solution) in the the reservoir. Find the pollutant amount x(t). Consider a reservoir with a volume of 8 billion ft³ and an initial pollution concentration of 0.25%. There is a daily inflow of 500 million ft3³ with a pollution concentration of 0.05% and an equal daily outflow of the well-mixed water (solution) in the the reservoir. Find the pollutant amount x(t).