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Sonbull [250]
2 years ago
7

The mean of this data set is 9. What number is missing? 11,20,_,3,1

Mathematics
1 answer:
kherson [118]2 years ago
7 0
Let the missing number be x

Mean is the total sum of data over the number of data therefore,

(11+20+x+3+1) / 5 = 9
Then simplify
(35 + x) / 5 = 9
Then multiply 5 to both sides
35 + x = 45
Then subtract 35 to both sides to find x
X= 10

Hope this helps!

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Solution:

As per the problem

A person is born every 5 seconds and a person dies every 12 seconds.

Here the LCD of 5 and 12 is 60.

The number of person born in 60 seconds=\frac{60}{5}=12\\

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Hence Population increase in 60 seconds is=12-5=7\\

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Alex invests $2,000 in a company's stock. After a year, the value of Alex's stock has increased to $2,500. What rate of return h
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<u>Explanation:</u>

Given:

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Answer:

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Step-by-step explanation:

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