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sasho [114]
2 years ago
15

At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path.The bicyclist headi

ng north is riding 6 km/hour faster than the bicyclist heading south. At 10:15, they are 42.5 km apart. Find the two bicyclists’ rates.
Mathematics
2 answers:
ki77a [65]2 years ago
6 0

rate of bicyclist heading north=20 km/hr

4vir4ik [10]2 years ago
6 0

Answer:

the speed of the bicyclist heading south 14

the speed of the bicyclist heading north  20

Step-by-step explanation:

Let x is the speed of the bicyclist heading south

Let x+6 is the speed of the bicyclist heading north

Because, they are heading in opposite directions, so the relative speed is:

x + x + 6 = 2x+6

  • Start time: 9:00 until 10:15 is 1 hour and 15 mins = 1\frac{15}{60}= \frac{5}{4}
  • they are 42.5 km apart, that is the distance between them

As we know:

\dfrac{Distance}{time}=Speed

<=> \dfrac{42.5}{\dfrac{5}{4}}=2x+6

<=> 170 = 10x + 30

<=> x = 14 km/hour

=> Speed of bicyclist heading north would be 14+6=20 km/hr

Hope it will find you well.

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3 years ago
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Hi. Good?

To solve is to use the formula:

D = v.t

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I put the result in miles per minute and miles per second.


Thanks, I hope I have helped.

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