MathCalculusQ&A Librarythe community is jointly proportional to the number of people who have adopted it and the number of people who have not adopted it. Mixtures 9. Suppose that a large mixing tank initially holds 300 gallons of water in which 50 pounds of salt have been dissolved. Pure water is pumped into the tank at a rate of 3 gal/min, and when the solution is well stirred, it is then pumped out at the same rate. Determine a differential equation for the amount of salt A() in the tank at time t> 0. What is A(0)y? 10. Suppose that a large mixing tank initially holds 300 gallons of water in which 50 pounds of salt have been dissolved.

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