3 years ago

Decide if the situation involves a permutation... anyone?

1 answer:

4 0

Each medal is different and is handed out depending on the outcome of the race/order of the racers, so we're counting the number of permutations. 4 medals are given to 4 runners, so there are

$4!=4\cdot3\cdot2\cdot1=24$

possible ways to do it.

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The percentage of workers not wearing the helmets is 5.3 %.

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total workers = 900

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