Solve the following word problem. 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?

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

The initial air temperature at 9 a.m. is -5.8 degrees Celsius.
The final air temperature at noon is -1.6 degrees Celsius.

Change in temperature = final temperature - initial temperature

Change in temperature = (-1.6°C) - (-5.8°C)

Change in temperature = -1.6°C + 5.8°C

Change in temperature = 4.2°C

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

u sure?

Apologies for the incorrect calculation. Let's recalculate the change in temperature:

Change in temperature = final temperature - initial temperature
Change in temperature = -1.6°C - (-5.8°C)
Change in temperature = -1.6°C + 5.8°C
Change in temperature = 4.2°C

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

Add (−12) and (−15).

To add -12 and -15, we simply add their values:

-12 + (-15) = -27.

Therefore, -12 + (-15) = -27.

Add 10.82+(−15.96).

To add 10.82 and -15.96, simply add their values:

10.82 + (-15.96) = -5.14.

Therefore, 10.82 + (-15.96) = -5.14.

Solve the following problem:

It was 13°C yesterday, but the temperature changed by −18.6° overnight. What is the temperature now?

To find the temperature now, we need to subtract the change in temperature from the initial temperature.

Initial temperature = 13°C
Change in temperature = -18.6°C

Temperature now = Initial temperature + Change in temperature
Temperature now = 13°C + (-18.6°C)
Temperature now = -5.6°C

Therefore, the temperature now is -5.6 degrees Celsius.

Use the additive inverse to find −492.89−(−871.78).