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Elenna [48]
1 year ago
10

The probability that Brian wins a raffle is given by the expression n n + 2 . Write down an expression, in the form of a combine

d single fraction, for the probability that Brian does not win.
Mathematics
1 answer:
LUCKY_DIMON [66]1 year ago
7 0

Answer:

\frac{2}{n+2}

Step-by-step explanation:

Given

Let the total probability be 1

Probability that Brian wins a raffle  = n/n+2

Probability that Brian does not win a raffle = 1 - Probability that Brian wins a raffle

Probability that Brian does not win a raffle = 1 - (n/n+2)

Probability that Brian does not win a raffle = \frac{n+2-n}{n+2}

Probability that Brian does not win a raffle = \frac{2}{n+2}

Hence required fraction is  \frac{2}{n+2}

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Answer:

The art teacher needs to buy at least 8 packs of 8 brushes.

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1 year ago
James is the manager at an entertainment arena that draws an average 7,000 patrons per event. Each ticket taker can process 350
Elina [12.6K]

Answer:

No. James didn't have enough ticket takers to process the average number of patrons hat usually attend the events.

He need to hire 2 more ticket taker (i.e 20 ticket takers) in order to process the average number of patrons hat usually attend the events.

Step-by-step explanation:

Given:

Average amount of patron per event= 7000

Each ticket taker can process = 350

Number of ticket takers hired = 18

We need to find the whether he hire enough to process the average number of patrons that usually attend the events.

Solution:

We will find the Average amount of patron ticket takers can process.

Now we can say that

Average amount of patron ticket takers can process is equal to Each ticket taker can process multiplied by Number of ticket takers hired.

framing in equation form we get;

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Hence With the required hires James cannot fully process the patrons usually attending the event.

To find how many ticket takers required we will divide average number of patrons with  Each ticket taker can process.

framing in equation form we get;

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