(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

a larg tank is filled with 500 gals of water with 400lbs of salt. pure water is pumped into the tank at a rate of 3gal/min. the well mixed solution is pumped out at a rate of 7 gal/min.

I need help finding the Differential

2. Relevant equations

3. The attempt at a solution

I tried coming up with the D.E. and this is what i got dA/dt = 3 - 7A/(500-t)

except after i did solved the d.e. i kept getting more salt than i started with which makes no sense...

Please Help lol

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# Homework Help: Mixing Tank, Differential Equations Problem

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