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A 150 gallon aquarium originally has 20 gallons of salt water which contains 10 pounds of...

A 150 gallon aquarium originally has 20 gallons of salt water which contains 10 pounds of salt. Water is then added at a rate of 2 gallons/minute. Simultaneously, the mixed solution is emptied at a rate of 1 gallon/minute.  

a. Construct an IVP to represent this, explaining what your variables represent

b. Solve the IVP

c. Then, solve to find out how much salt is left in the aquarium when it is full

Math   Advanced-Math   
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