Question: Problem 1: A 300 gallon tank initially contains 240 gallons of pure water. Water with a concentration of 0 pounds of salt per gallon is

Problem 1: A 300 gallon tank initially contains 240 gallons of

Problem 1: A 300 gallon tank initially contains 240 gallons of pure water. Water with a concentration of 0 pounds of salt per gallon is added to the tank at 2 gal/min, and the resulting solution leaves at a rate of 1 gal/ min. What concentration 0 should be used so that the tank will have a concentration of :7 pounds per gallon once it is full with 300 gallons of water in the tank

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