ath 112 Written Homework: Rational Functions Student Name: Instructor Math 112 Section:_ Directions: Show all work so that your thought process is clear and concise. Be sure to answer each question that is asked. Explanations and solutions must be given in complete, grammatically correct, sentences. All graphs should be drawn accurately on this sheet, with a consistent scale, and be fully labeled. A large mixing tank currently contains 75 gallons of water into which 5 pounds of sugar have been mixed. A tap will open pouring 10 gallons per minute of water into the tank at the same time sugar is poured into the tank at a rate of 1 pound per minute. Find the concentration (pounds per gallon) of sugar in the tank after 15 minutes. Is that a greater concentration than at the beginning? 1.