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iren [92.7K]
3 years ago
9

Select the correct answer

Mathematics
2 answers:
Bess [88]3 years ago
6 0

Answer:

Answer is C.

Step-by-step explanation:

The general formula for calculating combinations is:

\frac{n!}{k!(n-k)!}

Where n is the total number of options and k is the number of options in the combination.

In this case, sub in the numbers given in the question:

\frac{8!}{5!(8-5)!}

=\frac{8\times 7 \times 6 }{3 \times 2}

=8 \times 7

=56

AlexFokin [52]3 years ago
5 0

<u>Answer:</u>

The correct answer option is C. 56.

<u>Step-by-step explanation:</u>

We are given that a group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets.

We are to find the number of combinations these 5 friends could

possibly receive the tickets.

Here, we will use the concept of combination as the order of the friends is not specific.

5C5+ (5C4 * 3C1) + (5C3*3C2) + (5C2*3C3)

=1+5*3 + 10*3 +10*1 = 1+15+30+10= 56

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