A dead body was found within a closed room of a house where the temperature was a constant 70°F. At the time of discovery, the core temperature of the body was determined to be 85°F. One hour later a second measurement showed that the core temperature of the body was 80°F. Assume that the time of death corresponds to t=0 and that the core temperature at that time was 98.6°F.Determine how many hours elapsed before the body was found.

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