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Radda [10]
2 years ago
14

The average of students is 15 years if the age of a teacher is included their average becomes 18 years .what is the age of the t

eacher ?
​
Mathematics
2 answers:
xxTIMURxx [149]2 years ago
8 0

Answer:

21; the age of the teacher

Step-by-step explanation:

15+x/2=18

Estimate - I estimated in the 20's because it only averaged up a little bit

Started with 23 and kept going until i got to my answer

21

15+21/2

36/2

18

Please mark brainliest :)

zubka84 [21]2 years ago
6 0
I think the age of the teacher is 21
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3 years ago
For which distributions is the median the best measure of center?
Marat540 [252]

Answer:

it will be the correct answer..

because

The median is the most informative measure of central tendency for skewed distributions or distributions with outliers. For example, the median is often used as a measure of central tendency for income distributions, which are generally highly skewed.

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2 years ago
Geri spent Friday, Saturday and Sunday selling a total of 24 magazines orders for her school.The amounts on those 3 days were co
ryzh [129]

The sale on Friday = x = 6

The sale on Saturday = x+2 = 6 + 2 =8

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Step-by-step explanation:

Let x be the sale of Friday

Then

x+2 will be the sale of Saturday

x+4 will be the sale of Sunday

According to the given statement, that the total sales were 24

x+(x+2)+(x+4) = 24\\x+x+2+x+4 = 24\\3x+6 = 24\\Subtracting\ 6\ from\ both\ sides\\3x+6-6=24-6\\3x=18\\Dividing\ both\ sides\ by\ 3\\\frac{3x}{3} = \frac{18}{6}\\x=6

The sale on Friday = x = 6

The sale on Saturday = x+2 = 6 + 2 =8

The sale on Sunday = x+4 = 6+4 =10

Keywords: Linear equations

Learn more about linear equations at:

  • brainly.com/question/3126500
  • brainly.com/question/3306327

#LearnwithBrainly

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3 years ago
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8320yards X 3ft = 24,960 divide that by 5,280ft in a mile and you get 4.72 miles
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What is the domain of the relation? {(-3,4), (0-1), (7,5), (8,8)} Question 1 options: {-3, 7} {-3, 0, 7} {-3, 0, 7, 8} {-1, 4, 5
Tema [17]

Answer: {-3, 0, 7, 8}

Step-by-step explanation: The domain of a relation is the set of all the x-terms of the relation.

In this problem, the domain will be the set of all the x-terms. When listing the domain, remember that we go from least to greatest.

Domain {-3, 0, 7, 8}

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