Answer:
Average temperature = 9°F per minute
Step-by-step explanation:
Given : the temperature of a pot of water fell from 72°F to 36°F in 4 minutes.
To find : Find the average temperature per minute.
Solution : We have given
Temperature decreases in 4 minute = 72°F to 36°F
72 -36 = 36°F
Temperature decreases in 4 minute = 36°F
Temperature decreases in 1 minute = [tex]\frac{36}{4}[/tex].
Temperature decreases in 1 minute = 9°F
Average temperature = [tex]\frac{9}{1}[/tex].
Average temperature = 9°F per minute.
Therefore, Average temperature = 9°F per minute.