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Suppose the temperature at 12:00 noon is increasing at an (instantaneous)
rate of

3

degrees F. per hour. What is the rate of change of the temperature
in degrees C. per hour.

Hint: The relationship between degrees F. and degrees C. is linear,
zero (0) degrees C

equals 32 degrees F, and 100 degrees C equals 212 degrees F.

The rate of change in degrees C per hour is

• calculas -

rate= 3F/hr= 3(5/9) C/hr

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