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| Math Central | Quandaries & Queries |
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Question from Susan, a parent: Two bicyclists traveled in opposite directions, one at a rate of 8 km/hour and the other at a rate of 7 km per hour. In how many hours were they 45 km apart? |
Hi Susan,
How fast is the distance between them changing? At that rate how long will it take for the distance to reach 45 km?
Penny
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