Question: 11. Write the differential equation which models the following problem and solve it to answer the question. A body was discovered at 6:00 PM and

11. Write the differential equation which models the following problem and solve it to answer the question. A body was discovered at 6:00 PM and its temperature was 80 F. The temperature of the room was kept constant at 60 F. Two hours later the temperature of the body dropped to 75F. Calculate the time of the person's demise. (Note: The temperature of a living person is 98.6.F). 12. A large tank contains 60 gallons of brine and has 12 lbs of salt dissolved in it. New brine containing

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