4. A cherry pie with a temperature of 120°C was placed on a table to cool in a room of constant temperature 25°C. After 5 minutes, the temperature of the pie had dropped to 89°C. How long, after the pie was placed, would the temperature be 65°C? Use Newton's Law of Cooling : = -k(T – T,). dt

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Chapter3: Functions
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4. A cherry pie with a temperature of 120°C was placed on a table to cool in a room of
constant temperature 25°C.
After 5 minutes, the temperature of the pie had dropped to 89°C.
How long, after the pie was placed, would the temperature be 65°C? Use Newton's
dT
Law of Cooling :
= -k(T – T,).
dt
Transcribed Image Text:4. A cherry pie with a temperature of 120°C was placed on a table to cool in a room of constant temperature 25°C. After 5 minutes, the temperature of the pie had dropped to 89°C. How long, after the pie was placed, would the temperature be 65°C? Use Newton's dT Law of Cooling : = -k(T – T,). dt
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