Q Search A tank initially has 100 gallons of brine containing 5 lbs of salt. The mixture is kept well-mixed. A solution with 3 lbs salt/gal is allowed to flow into the tank at a rate of 2 gal/min, and...

Extracted text: Q Search A tank initially has 100 gallons of brine containing 5 lbs of salt. The mixture is kept well-mixed. A solution with 3 lbs salt/gal is allowed to flow into the tank at a rate of 2 gal/min, and the mixture flows out of the tank at a rate of 2 gal/min. a) Sketch a picture and define your variables. b) Set up the DE that fits this situation, and simplify your DE. Be sure to use proper notation. You do NOT have to solve the DE. c) What type of DE is this? (Integrate, separable, linear, linear inside, homogeneous, Bernoulli, or exact?)