(Answered) 1 if a cup of coffee has temperature 95deg c in a room

Finance

1. If a cup of coffee has temperature 95° C in a room where the temperature is 20° C, then, according to Newton's Law of Cooling, the temperature of the coffee after t minutes is T(t) = 20 + 75e-t/50What is the average temperature (in degrees Celsius) of the coffee during the first half hour?
Average temperature = __________________degrees Celsius

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