Related rates problems. Please help me!
A detective is called to the scene of a crime where a dead body has just been found. She arrives on the scene at 10:23 when she takes the temperature of the body which is 82 degrees F. The detective checks the thermostat and finds the room has been kept at 68 degrees F for the past three days.
at 11:23 the temperature of the body is taken again and is at 80.5 degrees F.
The next day the detective is asked 'what time did the victim die' assuming the victims body temp was normal (98.6 degrees F) prior to death, what is the answer to the question?
I don't know what equation to use in order to 'relate' the rates... HELP?(: pleaseeee.