A tank initially contans 100 gallons of brine whose concetration is lb/qal. Brine whose salt con- centration is 2 1b/gal flows into the tank at 2 gal/min. The well-stirred mixture flows out at the...

Extracted text: A tank initially contans 100 gallons of brine whose concetration is lb/qal. Brine whose salt con- centration is 2 1b/gal flows into the tank at 2 gal/min. The well-stirred mixture flows out at the rate of 3 gaon Find oalt content of brine and its concetration after 30 minutes.