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s2008m [1.1K]
3 years ago
10

How many different 5-person subcommittees can be formed from a club having 12 members

Mathematics
1 answer:
Wittaler [7]3 years ago
3 0
Given that there are 12 persons, the first choice may be in 12 different ways, the second choice may be in 11 different ways, ther third in 10 different ways, the fourth in 9 different ways and the fith in 8 different ways, for a total of:

12x11x10x9x8 different combinations.

Now you have to take in account that 5x4x3x2 are repetitions. So you have to divide the previos counting by 5x4x3x2.

(12x11x10x9x8)/(5x4x3x2) = 792 different subcommittees.

Also, you can use the formula for combinations: C(m,n) = m! / (n! (m-n)!)

C (12, 5) = 12! / (5!) (12-5)! = [12x11x10x9x8x7!] / [5! 7!] = [12x11x10x9x8]/[5x4x3x2] = 792
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Zanzabum

Answer: 2/3

Step-by-step explanation:

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8 0
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Step-by-step explanation:

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3 years ago
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erma4kov [3.2K]

Answer:

Multiply the first equation by five to yield, 15x + 5y = 45. Add this equation to the second equation from the given,

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The answer would be 18x = 60. The value of x is 10/3. Therefore, the answer to this item is letter A.

Read more on Brainly.com - brainly.com/question/1504559#readmore

Step-by-step explanation:

5 0
4 years ago
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Step-by-step explanation:

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To get my answer, I divided the price by the number of ounces for each smoothie. This would give you the price of each ounce.

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