Question

The temperature at midnight was -3° C. By 8 am, it had risen 2.5°. By noon, it had risen another 3.7°. Then a storm blew in, causing it to drop 5.7° by 6 pm. What was the temperature at 6 pm?

a. -2.5°C.
b. 2.5°C.
c. 3.5°C.

Answer 1

The temperature at 6 pm was -2.5°C.

Step-by-step explanation:

The temperature at 6 pm can be calculated by adding the change in temperature from midnight to 8 am, then from 8 am to noon, and subtracting the change in temperature from noon to 6 pm.

The change from midnight to 8 am was 2.5°C, the change from 8 am to noon was 3.7°C, and the change from noon to 6 pm was -5.7°C. So, the temperature at 6 pm can be calculated as follows: -3°C + 2.5°C + 3.7°C - 5.7°C = -2.5°C

Therefore, the temperature at 6 pm was -2.5°C.