SOLUTION: One day, the temperature at 11:00 A.M. was 39°F, and by 2:00 P.M. the temperature was 51°F. What was the hourly rate of temperature change?

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Question 193792: One day, the temperature at 11:00 A.M. was 39°F, and by 2:00 P.M. the temperature was 51°F. What was the hourly rate of temperature change?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
change in temperature is 51-39=12 degrees
:
ther was a total of 3 hours so the hourly rate of change is
:
12deg/3hours=4 degrees per hour