SOLUTION: A pot of boiling soup with an internal temperature of 100° Fahrenheit was taken off the stove to cool in a 72°F room. After fifteen minutes, the internal temperature of the soup
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Question 1153661: A pot of boiling soup with an internal temperature of 100° Fahrenheit was taken off the stove to cool in a 72°F room. After fifteen minutes, the internal temperature of the soup was 93°F.
To the nearest minute, how long will it take the soup to cool to 80°F? Answer by ikleyn(52850) (Show Source):