Question

On the coldest night in north ice, greenland, the temperature dropped from 0°c to −21°c in 7 hours. what is the average temperature change per hour?

Answer 1

Answer: The answer is -3

Explanation:

Please check the snap shots below for all the correct answers (the last snapshot answers this question)

Answer 2

The average temperature change per hour is
{temperature change}/{number of hours}=(-21-0)/7=-21/7=-3