Question

A freezer in a lab is set so that the temperature changes at a rate of -1.60 every hour. What is the change in temperature after 4 hours?

A) -4.40
B) -3.20
C) -6.40
D) -1.20

Answer 1

The change in temperature in the freezer after 4 hours is -6.40°C, which is answer choice C.

Step-by-step explanation:

If a freezer in a lab is set such that the temperature changes at a rate of -1.60°C every hour, to find the change in temperature after 4 hours, you would multiply the hourly rate of change by the number of hours. Therefore, the calculation would be:
-1.60°C/hour × 4 hours = -6.40°C.

So, after 4 hours, the temperature would have dropped by -6.40°C, which corresponds to answer choice C.