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3 years ago

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

Mathematics

1 answer:

ehidna [41]3 years ago

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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lana66690 [7]

Answer:

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Step-by-step explanation:

Let the length of the rectangle be 'L'

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$Length= 2*Width+4\\L=2W+4$

Perimeter of a rectangle= 2(Length+Width)

$86=2(2W+4+W)\\86/2=3W+4\\43=3W+4\\3W=43-4\\3W=39\\W=39/3\\W=13 cm\\\\Length(L)=2W+4\\=2(13)+4=26+4=30 cm\\Length=30 cm$

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3 years ago

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3 years ago

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