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| Math Central | Quandaries & Queries |
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Two airplanes are 300 miles apart and flying directly towards each other. |
One is flying at 200 miles per hour,
and the other at 160 miles per hour.
How quickly are they approaching each other?
How long will it take for the two planes to meet?
How fast (in miles per hour) is the distance between them decreasing?
How many hours will it take, at this rate of change, for 300 miles to reduce to 0?
Good Hunting!
RD
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Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.