A tank initially contains 300 gallons of a salt solution made bydissolving 30 pounds of salt in water. A solution containing 0.6pounds of salt per gallon enters the tank at a rate of 5 gallonsper minute. A drain is opened at the bottom of the tank throughwhich the well stirred solution leaves the tank at the same rate of5 gallons per minute. Let y(t) denote the amount of salt (inpounds) which is in the tank at time t. (A) find out y(t)?( B) howmuch salt is in the tank after 1/2 hour?
