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iren2701 [21]
1 year ago
15

Of the $10$ kids in a chess club, $5$ are left-handed and $5$ are right-handed. the club holds a round-robin tournament in which

every player plays against every other player exactly once. what fraction of the games have two right-handed players? enter your answer as a fraction in simplified form.
SAT
1 answer:
Nataliya [291]1 year ago
5 0

The total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 is the fraction of all games at the tournament Anita plays.

<h3>How to carry out Permutation and Combination?</h3>

We are given that there are 5 girls and 5 boys in a chess club.

Thus, total games that girls play against a boy = 5×5 = 25

The number of games a girl play against another is the total number of games = 10

The number of games that are boy vs boy = 10

The number of games Boy vs Boy + Girl vs Girl + Boy vs Girl = 10 + 10 + 25 =  45

Fraction of the games that are boy vs boy = 10/45 = 2/9

If Anita is one of the club members, then Anita will have to play against 9 people at the tournament.

Total number of games = 45

Then the fraction of all games at the tournament Anita play the game.= 9/45 ⇒ 1/5

Thus, the total number of games a girl play against a boy is 25, the number of games a girl plays against a boy is 10, the fraction of the games are boy-versus-boy is 2/9, and 1/5 fraction of all games at the tournament Anita plays.

Read more about Permutation and Combination at; brainly.com/question/4658834

#SPJ1

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The nurse is teaching a patient with asthma how to use a peak flowmeter. What does the nurse include when teaching this patient?
denis-greek [22]

When teaching a patient how to use a peak flowmeter, the nurse should include the following steps:

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  • Blow out as hard and fast as possible in a single breath.
  • Note the number on the scale where the indicator stops. This is the peak expiratory flow (PEF) rate.
  • Repeat the process two more times and record the highest of the three readings.

<h3>What is a peak flowmeter?</h3>

A peak flowmeter is a device that measures how well air moves out of the lungs. It can help a patient with asthma monitor their condition and adjust their medication accordingly.

There are some steps that need to be teached to the patient:

Stand or sit up straight and make sure the indicator is at the bottom of the scale.

Take a deep breath and fill the lungs completely.

Place the mouthpiece in the mouth and close the lips tightly around it. Do not put the tongue inside the mouthpiece.

Blow out as hard and fast as possible in a single breath.

Note the number on the scale where the indicator stops. This is the peak expiratory flow (PEF) rate.

Repeat the process two more times and record the highest of the three readings.

Once we get these readings, the next steps are:

Compare the reading with the personal best PEF rate and the asthma action plan. The personal best PEF rate is the highest reading obtained when the asthma is well controlled. The asthma action plan is a written guide that tells the patient what to do based on their PEF rate and symptoms.

If the PEF rate is in the green zone (80% or more of the personal best), the asthma is under control and the patient should continue with their usual medication.

If the PEF rate is in the yellow zone (50% to 79% of the personal best), the asthma is getting worse and the patient should follow the instructions for increasing their medication or seeking medical attention.

If the PEF rate is in the red zone (below 50% of the personal best), the asthma is severe and the patient should use their rescue inhaler and seek emergency care.

The nurse should also teach the patient how to clean and store the peak flowmeter, and when to replace it. The nurse should emphasize the importance of using the peak flowmeter regularly and keeping a record of the readings and symptoms. The nurse should also encourage the patient to share the results with their health care provider and to follow the asthma action plan.

Learn more about asthma at:

brainly.com/question/14395550

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Answer:

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She made this error because she included 1.25 with the x variable but did not include the x variable next to 1.49.

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