In City A, the temperature drops by -5°F per hour, so after 5 hours, the temperature would be 70°F + (-5°F × 5) = 70°F - 25°F = 45°F.
In City B, the temperature drops by -3°F per hour, so after 5 hours, the temperature would be 70°F + (-3°F × 5) = 70°F - 15°F = 55°F.
Therefore, City B is warmer by 10°F.
The correct answer is C. City B is warmer by 10°F.
The temperature is dropping throughout the day as a cold front comes in. In city A, the temperature is changing by -5° F per hour and in city B the temperature is changed by - 3° F per hour. If the temperatures in both cities started at 70°F which city is warmer, and what is the difference in their temperatures after 5 hours?
A. City A is warmer by 10°F
B. City A is warmer by 2° F
C. City B is warmer by 10° F
D. City B is warmer by 2° F
1 answer
1 answer