A tank initially has 100 gallons of brine containing 5 lbs of salt. The mixture is kept well-mixed. A solution with 3 Ibs 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.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A tank initially has 100 gallons of brine containing 5 Ibs of salt. The mixture is kept well-mixed. A solution with
3 Ibs 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.
Sketch a picture and define your variables.
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.
What type of DE is this? (Integrate, separable, linear, linear inside, homogeneous, Bernoulli, or exact?)
What is the initial condition that would help you find the IVP solution?
Transcribed Image Text:A tank initially has 100 gallons of brine containing 5 Ibs of salt. The mixture is kept well-mixed. A solution with 3 Ibs 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. Sketch a picture and define your variables. 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. What type of DE is this? (Integrate, separable, linear, linear inside, homogeneous, Bernoulli, or exact?) What is the initial condition that would help you find the IVP solution?
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