Mathematics, 08.12.2019 05:31, kkbrookly7496
The temperature of a cup of coffee varies according to newton's law of cooling: dt dt equals negative k times the quantity t minus a, where t is the water temperature, a is the room temperature, and k is a positive constant.
if the coffee cools from 180°f to 100°f in 10 minutes at a room temperature of 75°f, how long (to the nearest minute) will it take the water to cool to 80°f?
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