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3 years ago

13

69 athletes are running a race. A gold medal is to be given to the winner, a silver medal is to be

1 answer:

scoray [572]3 years ago

6 0

Answer:

The order of finishing is important here, therefore you use permutations rather than combinations. Athlete A winning a gold medal, athlete B silver, and athlete C bronze is not the same as athlete A bronze, athlete B silver and athlete C gold for instance

69P3 = 69! / (69 -3!)

Step-by-step explanation:

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Step-by-step explanation:

Equation

3x + 9 + 2x = x - 2x - 3

Solution

Combine all the like terms.

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Step-by-step explanation:

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