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 temperatures in both cities started at 70°F , which city is warmer, and what is the difference in their temperatures after 5 hours?(1 point) Responses City B is warmer by 2°F. City B is warmer by 2 degrees F . City A is warmer by 10°F. City A is warmer by 10 degrees F . City B is warmer by 10°F. City B is warmer by 10 degrees F . City A is warmer by 2°F.
The temperature in City A is changing by −5°F per hour, so after 5 hours, the temperature will decrease by 5 * 5 = <<5*5=25>>25°F.
The temperature in City B is changing by −3°F per hour, so after 5 hours, the temperature will decrease by 3 * 5 = <<3*5=15>>15°F.
The final temperature in City A will be 70 - 25 = <<70-25=45>>45°F.
The final temperature in City B will be 70 - 15 = <<70-15=55>>55°F.
Therefore, City B is warmer by 55 - 45 = <<55-45=10>>10°F. Answer: \boxed{\text{City B is warmer by 10 degrees F}}.