Answer Happy

Question 1 25 pts Suppose a tank contains 600 gallons of salt water. If pure water flows into the tank at the rate of 7 gallons per minute and the mixture flows out at the rate of 4 gallons per minute, how many pounds of salt will remain in the tank after 18 minutes if 33 pounds of salt are in the mixture initially? (Give your answer correct to at least three decimal places.) Warning! Only round your final answer according to the problem requirements. Be sure to keep as much precision as possible for the intermediate numbers. If you round the intermediate numbers, the accumulated rounding error might make your final answer wrong. (This is true in general, not just in this problem.)