At a competition with 5 runners, medals are awarded for first, second, and
2 answers:
Answer:
B: Permutation; Number of ways are 60
Step-by-step explanation:
At a competition with 5 runners, medals are awarded for first, second, and third places.
Each of the 3 medals is different.
This is a case of Permutation and the Number of ways are 60.
We have to award 3 medals among 5 runners.
This can be done in 5P3 ways.
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Therefore, the answer is option A.
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Answer:
The best models the amount of time it takes him to finish with kelvin cycling .
Option (A) is correct.
Step-by-step explanation:
As given
Kevin cycles 18 miles every morning as part of his exercise.
The time it takes him to complete the distance varies inversely as the speed at which he rides.
As m miles per hour is represented the speed.
T is the time taken by Kevin cycle for morning exercise .
Distance = 18
Putting the values in the above
Therefore the best models the amount of time it takes him to finish with kelvin cycling .
Option (A) is correct.