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Keith_Richards [23]

3 years ago

10

N-

="absmiddle" class="latex-formula">+2= $\frac{2n+1}{3}$

Solve

1 answer:

Sunny_sXe [5.5K]3 years ago

8 0

Answer: $n = -12$

Step-by-step explanation: $n - \frac{2n - 3}{9} + 2 = \frac{2n + 1}{3}$

$\frac{9n - 2n - 3 + 18}{9} = \frac{2n + 1}{3}$

$\frac{7n + 15}{9} = \frac{2n + 1}{3}$

$9(2n + 1) = 3(7n + 15)$

$18n + 9 = 21n + 45$

$9 = 3n + 45$

$-36 = 3n$

$-12 = n$

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Answer:

The manager can select a team in 61425 ways.

Step-by-step explanation:

The order in which the cashiers and the kitchen crews are selected is not important. So we use the combinations formula to solve this question.

Combinations formula:

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

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

In how many ways can the manager select a team?

2 cashiers from a set of 10.

4 kitchen crews from a set of 15. So

$T = C_{10,2}*C_{15,4} = \frac{10!}{2!(10-2)!}*\frac{15!}{4!(15-4)!} = 45*1365 = 61425$

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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