Question

In: Advanced Math

A tank initially contains 150 gal of brine in which 20lb of salt are dissolved. A...

A tank initially contains 150 gal of brine in which 20lb of salt are dissolved. A brine containing 3 ​lb/gal of salt runs into the tank at the rate of 4 gal/min.The mixture is kept uniform by stirring and flows out of the tank at the rate of 3 gal/min. Let y represent the amount of salt at time t. Complete parts a through e.

a. At what rate​ (pounds per​ minute) does salt enter the tank at time​ t?

b. What is the volume of brine in the tank at time​ t?

c. At what rate​ (pounds per​ minute) does salt leave the tank at time​ t?

d.Write down and solve the initial value problem describing the mixing process. What is the solution to the initial value​ problem?

e. Find the concentration of salt in the tank 28 min after the process starts.

Solutions

Expert Solution


Colby Messinger answered 1 year ago
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