One day at 3:00 a.m., the temperature was
–
13
°
F
in Kodiak, Alaska. At 10:00 a.m., the temperature was 22°F. What was the average change in temperature per hour?
The temperature changed by 22°F - (-13°F) = 35°F over 7 hours (from 3:00 a.m. to 10:00 a.m.).
To find the average change per hour, we divide the total change by the number of hours:
35°F ÷ 7 hours = 5°F per hour
Therefore, the average change in temperature per hour was 5°F.