Question

The temperature in Flagstaff was -5°C when Sandy went to bed. The temperature dropped 20°C during the night. Which integer represents the change in temperature?

A) -25°C.
B) -20°C.
C) 20°C.
D) 25°C.

Answer 1

The change in temperature is -20°C.

Step-by-step explanation:

The change in temperature can be found by subtracting the starting temperature from the ending temperature. In this case, the starting temperature is -5°C and the temperature dropped 20°C during the night. So, the change in temperature is -5°C - (-20°C), which simplifies to -5°C + 20°C = 15°C. Therefore, the correct integer that represents the change in temperature is B) -20°C.