Question

A scientist changes the temperature of a liquid by the same amount every hour for 19 hours. In all, the change in temperature is −57∘C. What is the temperature change every hour?

1. The temperature change every hour is −3.5°C.
2. The temperature change every hour is −2.5°C.
3. The temperature change every hour is −1.5°C.
4. The temperature change every hour is −3°C

Answer 1

To determine the hourly temperature change, simply divide the total change of -57°C by 19 hours, resulting in a change of -3°C per hour.

Step-by-step explanation:

To find the temperature change every hour, we need to divide the total temperature change by the number of hours.

Total temperature change = -57°C
Number of hours = 19 hours

Temperature change every hour = Total temperature change / Number of hours
= -57°C / 19 hours
= -3°C per hour

Therefore, the correct answer is: The temperature change every hour is -3°C.