On a particular April day, the temperature at 8 am was 40°F. By 4 pm the temperature was 64°F. What was the hourly rate of temperature change?

(64º - 40º)/8 = ?º

frewjl

To find the hourly rate of temperature change, we need to calculate the difference in temperature between 8 am and 4 pm, and then divide it by the number of hours between those two times.

First, we calculate the difference in temperature:
64°F - 40°F = 24°F

Next, we need to determine the number of hours between 8 am and 4 pm. Since there are 12 hours from 8 am to 8 pm, and we are looking for the rate of change between 8 am and 4 pm, which is 4 hours earlier than 8 pm, we subtract 4 from 12:
12 - 4 = 8 hours

Finally, we divide the difference in temperature by the number of hours:
24°F / 8 hours = 3°F per hour

Therefore, the hourly rate of temperature change is 3 degrees Fahrenheit per hour.