Mathematics, 24.03.2020 03:33, swaggaming941
A tank contains 100 L of water. A solution with a salt con- centration of 0.4 kg/L is added at a rate of 5 L/min. The solution is kept mixed and is drained from the tank at a rate of 3 L/min. If y(t) is the amount of salt (in kilograms) after t minutes, show that y satisfies the differential equationdy/dt=2-3y/100+2tSolve this equation and find the concentration after 20 minutes.
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A tank contains 100 L of water. A solution with a salt con- centration of 0.4 kg/L is added at a rat...
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