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lisabon 2012 [21]
4 years ago
14

Two cyclists, 40 miles apart, start riding toward each other at the same time. One cycles 3 times as fast

Mathematics
1 answer:
Dmitry [639]4 years ago
3 0

Answer:

  15 mph

Step-by-step explanation:

The cyclists will cover distance at a rate proportional to their speed. So, the distance ratio is ...

  faster cyclist distance : slower cyclist distance = 3 : 1

Then the faster cyclist covers 3 : (3+1) = 3/4 of the total distance, or (3/4)(40 mi) = 30 mi.

That distance took 2 hours for the faster cyclist, so the speed was ...

  speed = distance/time = 30 mi/(2 h) = 15 mi/h

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8 0
4 years ago
What is the answer please?
Ahat [919]

Answer:

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