On Tuesday, the temperature in Fairfield, Montana fell from 51 degrees Fahrenheit at noon to -9 degrees Fahrenheit at midnight. What was the average temperature change per hour.

5 degrees

Step-by-step explanation:

First let's find out what the total change in degrees was. This should be 51 degrees to reach 0, plus 9 more to reach -9

51 + 9 = 60

Now we need to find how many hours we are dealing with. Just counting (12 pm to 1 pm is 1 hour, 1 pm to 2 pm is another hour, and so on...) we find that we have 12 hours.

So, now we just divide the degrees by the hours and get

60/12 = 5

You can also double check this by doing

51-5-5-5-5-5-5-5-5-5-5-5-5 = -9

5 degrees

Step-by-step explanation:

d

step-by-step explanation:

d