We got a container holding 100 liters of saltwater (concentration: 1%).
We pour 5 liters/min saltwater (2% conc.) and remove 5 liters/min of the liquid in the tank.
The concentration of salt is the same in all of the container.
When is the concentration 1.5%?
Ok I have nearly solved this problem, some details that don't fit in though.
My (near) solution:
Some trivial facts:
where y(t) is the amount of salt at a specific time.
We get this equation:
Well I think that I got it wrong somewhere, the above equation doesn't seem to fit.
Thanks for your replies.