Solve the problem.Newton's Law of Cooling states that the rate of change of temperature of an object is proportional to the difference in temperature between the object and the surrounding medium. Thus, if T is the temperature of the object after t hours and T0 is the (constant) temperature of the surrounding medium, then
where k is a constant. A cup of coffee with a temperature of 104°F is placed in a freezer with a temperature of 0°F. After 7 minutes, the temperature of the coffee is 59.4°F. What will its temperature be 20 minutes after it is placed in the freezer? Round your answer to the nearest degree.
A. 18°F
B. 19°F
C. 21°F
D. 16°F
Answer: C
Mathematics
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