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sertanlavr [38]
2 years ago
9

9=8n n=____________ Please helpppppp

Mathematics
2 answers:
horrorfan [7]2 years ago
6 0

Hey there!

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form: n = \frac{9}{8}

Decimal Form: n = 1.125

Mixed Number Form: n = 1 \frac{1}{8}

Hope this helps! Have a great day!

jeyben [28]2 years ago
5 0

Answer:

9/8 or 1.125

Step-by-step explanation:

yea simply simplify it

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Answer:

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Step-by-step explanation:

For each person, there are only two possible outcomes. Either they have a birthday in May, or they do not. The probability of a person having a birthday in May is independent of any other person. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Probability of a person being in May:

May has 31 days in a year of 365. So

p = \frac{31}{365} = 0.0849

Group of 20 friends:

This means that n = 20

What is the probability that at the May celebration, exactly two members of the group have May birthdays?

This is P(X = 2).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{20,2}.(0.0849)^{2}.(0.9151)^{18} = 0.2773

0.2773 = 27.73% probability that at the May celebration, exactly two members of the group have May birthdays

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We can use this problem:

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\frac{\square}{\square}

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Step-by-step explanation:

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