The average change in temperature per hour is 0.833 degrees per hour
Solution:
Given that In 12 hours the temperature steadily fell from 17°F to 7°F
To find: Average change in temperature per hour
First let us calculate the difference when temperature steadily fell from 17°F to 7°F
The difference from 17 degrees to 7 degrees is given as:
difference = 17 - ( 7) = 17 - 7 = 10 degrees
And it took 10 hours for such a change to happen.
Now let us find the average change in temperature per hour
Average change in temperature per hour is calculated by dividing 10 degrees by 12 hours


Thus the average change in temperature per hour is 0.833 degrees per hour