5. Initially, two large tanks A and B each hold 100 gallons of brine. The well-stirred liquid is pumped between the tanks as shown in the image. Use the information in the figure to construct a system of differential equations modelling the scenario. (Please do not solve the system). 2 Ib/gal 7 gal/min mixture 5 gal/min 100 gal 100 gal mixture mixture mixture 3 gal/min 1 gal/min 4 gal/min

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