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 changing by -3 F per hour. If the temperature in both cities started at 70 F, Which city is warmer, and what is the difference in their temperatures after 5 hour?

A.City A is warmer by 2 F

B.City B is warmer by 2 F

C. City A is warmer by 10 F

D. City B is warmer by 10 F

1 answer

After 5 hours, the temperature in City A would be 70 - 5*5 = 45 F.
After 5 hours, the temperature in City B would be 70 - 3*5 = 55 F.
Therefore, City B is warmer by 55 - 45 = <<55-45=10>>10 F.
The answer is D. City B is warmer by 10 F.