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Katyanochek1 [597]
2 years ago
7

Last weekend, the number of visitors at a zoo was z. This weekend, the number of visitors at the zoo can be represented by the g

iven expression. 1.13z
Which set of statements is true?

Mathematics
2 answers:
Vlad [161]2 years ago
7 0
<h3>Answer: Choice C</h3>

Notice how z + 0.13z = 1z + 0.13z = (1+0.13)z = 1.13z

The 0.13z represents the increase of 13%

Kazeer [188]2 years ago
6 0
The correct answer would be C, the amount of visitors increased by 13%. z is 100%, or the original number, and is already included in the equation as the 1 (1 is 100% in decimal form)
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A person travelled 9 hours a day what percentage of the day was spent on this journey​
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37.5%

Step-by-step explanation:

one day has 24 hours

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9÷0.24 = 37.5%

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<h3>What is a standard deviation?</h3>

It is the measure of the dispersion of statistical data. Dispersion is the extent to which the value is in a variation.

The set of data is given below.

16, 22, 8, 5, 20, 18, 14, 17, 24

The mean of the data set will be

μ = (16 + 22 + 8 + 5 + 20 + 18 + 14 + 17 + 24) / 9

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Then the standard deviation of the data set will be

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More about the standard deviation link is given below.

brainly.com/question/12402189

#SPJ1

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