Answer:
The temperature changed by overnight.
The temperature changed by overnight each hour.
Step-by-step explanation:
Given that:
Temperature at 7 PM last night =
Temperature at 7 AM the next morning =
a. The change in temperature from 7 PM to 8 AM = Temperature at 7 AM - Temperature at 7 PM
Negative sign indicates that the temperature has decreased.
b. Change in temperature each hour:
Divide the Change in temperature with the number of hours.
Negative sign indicates that the temperature has decreased.