Question

From 12:00 midnight to 6:00am, the

temperature decreased by 12°C. If the original temperature was 12°C, which expression can be used to represent this situation? Plz show work.
A. 12-12
B. 12 + 12
C. 12- (-12)
D. -12 + (-12)​

Answer 1

A. 12-12

Explanation:

Becuase if the temperature was originally 12°C then it decreases by 12° then it will be 12-12

Answer 2

A.) 12 - 12.

Explanation:

Given : From 12:00 midnight to 6:00 am, the temperature decreased by 12°C. If the original temperature was 12°C.

To find : which expression can be used to represent this situation.

Solution : We have given

At 12 : 00 midnight temperature = 12 °C.

At 6 : 00 am temperature decreased by 12 °C.

So, Final temperature = 12 °C - 12 °C.

Therefore, A.) 12 - 12.