A tank contains 80 galloons (gal) of pure water. A brine solution with 2 lb/gal of salt enters at 2 gal/min, and the well stirred mixture leaves at the same rate. Find (a) the amount of salt at any time, and (b) the time at which the brine leaving will contain 1 lb/gal of salt.

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Q: A tank contains 80 gallons (gal) of pure water. A brine solution with 2 lb/gal of salt enters at 2…

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