Question

The air temperature at 9 a.m. is −5.8 degrees Celsius. The air temperature at noon is −1.6 degrees Celsius. What is the change in the temperature during these three hours? Write and solve an equation to show your answer. Then explain what your answer means

Answer 1

To find the change in temperature during these three hours, we subtract the initial temperature from the final temperature.

Change in temperature = Final temperature - Initial temperature

In this case,
Final temperature = −1.6 degrees Celsius
Initial temperature = −5.8 degrees Celsius

Change in temperature = −1.6 - (−5.8)
= −1.6 + 5.8
= 4.2 degrees Celsius

Therefore, the change in temperature during these three hours is 4.2 degrees Celsius.

This means that the temperature increased by 4.2 degrees Celsius from 9 a.m. to noon.