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alekssr [168]
4 years ago
14

There are 100 runners entered in a marathon. How many different groups of three runners can finish in first, second, and third?

Mathematics
1 answer:
DIA [1.3K]4 years ago
4 0
Permutations and Every runner except for the one that was 1st could be 2nd hoep this helps
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The sum of a number and three is less than twelve<br>​
Nutka1998 [239]

Answer:

The equation is    x+3<12  

The answer is       x<9

Step-by-step explanation:

(The sum of a number = x) (and = +) (three is less than twelve = 3<12)

This means the equation is x+3<12, so then you subtract 3 from both sides and end up with x<9

Hope this helps :)

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