Question

Lyla checked last night and the temperature was 0oC. By morning, the temperature rose 10 degrees. By

afternoon, the temperature had risen another 7 degrees. Throughout the night, the temperature dropped 20 degrees. What is the temperature now?

Answer 1

The current temperature, after rising by 10 degrees, then by another 7 degrees, and finally dropping by 20 degrees from the initial 0 degrees Celsius, is -3 degrees Celsius.

Step-by-step explanation:

To solve this problem, we must track the changes in temperature in a step-by-step manner based on the information given:

1. Lyla notes the temperature at night, which was 0oC.
2. In the morning, the temperature rises by 10 degrees, making it 0oC + 10oC = 10oC.
3. By afternoon, the temperature rises another 7 degrees, which means it is now 10oC + 7oC = 17oC.
4. Throughout the night, the temperature drops by 20 degrees. Therefore, the new temperature is 17oC - 20oC = -3oC.

Following these changes, the current temperature now is -3oC.