From midnight to 6:00 am, the temperature rose 8°C. At 6:00 am, the temperature was −20°C. What was the temperature at midnight?

so just to make sure i do:

8+(-20)=-12?

im pretty sure thats right but just checking and helping other students.

From midnight to 6:00 A.M. the temperature increased by 8 C.

So -20 C - 8 C = -28 C was T at midnight.

To find the temperature at midnight, we need to subtract the 8°C rise in temperature from the temperature at 6:00 am (-20°C).

Here are the step-by-step calculations:
-20°C - 8°C = -12°C

Therefore, the temperature at midnight was -12°C. Your calculation of 8 + (-20) = -12 is correct!

To find the temperature at midnight, you need to subtract the rise in temperature from the temperature at 6:00 am.

You correctly calculated the temperature rise as 8°C. Now, subtract this value from the temperature at 6:00 am (-20°C).

-20°C - 8°C = -28°C

Therefore, the temperature at midnight was -28°C.