Question

At 6:00 a.m., the temperature was -9°F. At noon, the temperature was 10°F. Which expression can be used to find the change in temperature from 6:00 a.m. to noon?

Answer 1

The change in temperature from 6:00 a.m. to noon can be calculated by subtracting the initial temperature from the final temperature. Here, it is 10°F - (-9°F), resulting in a change of 19°F.

Step-by-step explanation:

The question asks how to calculate the change in temperature from 6:00 a.m. to noon, given that at 6:00 a.m. the temperature was -9°F and at noon it was 10°F. To find the change in temperature, we subtract the initial temperature from the final temperature.

Change in Temperature = Final Temperature - Initial Temperature

Change in Temperature = 10°F - (-9°F)

Now, subtracting a negative is the same as adding a positive. So, we actually add 9°F to 10°F.

Change in Temperature = 10°F + 9°F

Change in Temperature = 19°F

The change in temperature from 6:00 a.m. to noon is 19°F. This means that the temperature increased by 19 degrees Fahrenheit over the course of six hours.