Math CentralQuandaries & Queries


Question from alexa, a student:

two cars leave town at the same time going opposite directions. one of them
travels at 55 mph and the other at 65 mph. in how many hours will they be
150 miles apart?

Hi Alexa,

The two cars are moving away from each other. How quickly is the distance between them increasing? At that speed how long will it take the distance between them to increase from 0 miles to 150 miles?


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