At 3: 00 am, the temperature was -13 degrees. in alaska. at 10: 00 am, the temperature was 22 degrees, what was the average change in temperature per hour?

So,  there is a 7 hour span.  There is 35 degree change total.  So solve. Take 37/7=5
5 is the average

If you go from -13 to 0, you have an increase of 13 degrees. Then if you go from 0 to 22 you have an increase of 22 degrees. 13 + 22 = 35.
3:00 am to 10:00 am is 7 hours so:
35 degrees/7 hours = 5 degrees/hour
Also english is my second langauge so sorry if it's hard to understand

Xis equal to three