Question

Initially a tank has 60 gallons of water. A brine solution with 1 pound of salt per gallon enters the (continuously stirred and well mixed) tank at a rate of 2 gallons per minute. Solution leaves the tank at a rate of 3 gallons per minute. Find an equation that gives the amount of salt in the tank at time t for all times beginning at the initial time up until the tank is empty.

Answer 1

There is 16 ounces in 1 pound and 60 x 16 = 960 then do 2 divided by 960 which is 240 and then divide it by 3 = 160 so i think it's 160 but I'm in middle school anyway I hope this helps.