Question

The temperature in Atlanta started at
96
°
F
and was
72
°
F
5
hours later.



Which statement describes the average hourly change in temperature?



A.
The temperature increased by
24
°
F
each hour.

B.
The temperature decreased by
24
°
F
each hour.

C.
The temperature increased by
4.8
°
F
each hour.

D.
The temperature decreased by
4.8
°
F
each hour.

Answer 1

Change = 72 − 96 = −24°F over 5 hours. Average hourly change = −24/5 = −4.8°F per hour, so the temperature decreased by 4.8°F each hour. Answer: D.