SOLUTION: One day, the temperature at 11:00 A.M. was 44�F, and by 4:00 P.M. the temperature was 54�F. What was the hourly rate of temperature change? Thank you!

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Question 110869: One day, the temperature at 11:00 A.M. was 44�F, and by 4:00 P.M. the temperature was 54�F. What was the hourly rate of temperature change?
Thank you!
Answer by bucky(2189) (Show Source):
You can put this solution on YOUR website!
There are five hours between 11:00 a.m. and 4:00 p.m.
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During that time the temperature went from 44�F to 54�F, a change of +10�F.
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The average hourly rate of change is the change in temperature divided by the change in time:
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Rate = 10�F/5 hr = +2�F/hr
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The rate of change is read as +2�F per hour with the + sign indicating that the temperature
was increasing each hour.
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Note this is the "average" rate for the entire period of 5 hours. In "real life" the temperature
might not have changed during the first couple of hours and then it could have increased
at a faster rate during the last hour or two ... just enough to make the total change 10�F
by the end of the 5 hours.
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Hope this helps you to understand the problem.
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