At 11:00 am, a body was found within a closed room of a mansion where the air temperature is a constant 70 degrees F. At the time of discovery, the core temperature was determined to be 85 degree F. One hour later, a second measurement showed the core temperature of the body was 80 degrees F. Assume the core temperature of the body at the time of death was 98.6 degrees F. Use Newton’s Law of Cooling to determine the time of death. Hint: Let t=0 represent 11:00 am and work backwards to 98.6 degrees F. You may want to go back to the lesson and re-watch the Newton's Law of Cooling example. Newton's Law of Cooling:

A temperature of an object T and its surrounding temperature Tswill behave according to the formula: T(t)=Cert+Ts
tis time
C is the difference between the initial temperature of the object and the surroundings
r is a constant