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kondor19780726 [428]
3 years ago
5

How is 2 ones the same as 20 tenths?

Mathematics
2 answers:
kodGreya [7K]3 years ago
8 0

Think of it as currency, for example

2 ones = 2 of $1 = $2 total tenths of dollar = 10 Cents then

20 x 10 Cents = 200 Cents = $2

so they are the same.


As is 200 hundredths, and so on

yan [13]3 years ago
7 0

It's because a tenth means that you've divided it by 10. So if it's 20, it means you're multiplying tenths by 20, leaving you with 2 wholes.

For example, you have 2 cakes and you cut each into 10 slices, the slices are each one tenth of the whole cake, and in total there are 20 tenths.

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its \: dimensions \: are \to \\\boxed{w = 17.6cm}  \: \boxed{l = 78.4cm}

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infinite solutions

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Thirty-two percent of workers in Troberca City are college graduates. You randomly select 50 workers and ask them is he or she i
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The correct option is B) 67.4%

<h3>What is the z- score table?</h3>

A standard normal table (also called the unit normal table or z-score table) is a mathematical table for the values of ϕ, indicating the values of the cumulative distribution function of the normal distribution. Z-Score, also known as the standard score, indicates how many standard deviations an entity is, from the mean.

Given here, P(probability that a worker is a college graduate) = 32%

                                                                                                      = 0.32

q (probability that a worker is not a college graduate) is 1-0.32 = 0.68  

now μ(mean) = n×p

                      = 50×0.32

                      = 16

Again standard deviation σ = \sqrt{npq\\}

                                           σ = \sqrt{50\cdot 0.32\cdot 0.68}

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now P(x<17.5) = P((x-μ)/σ <(17.5-16)/3.2985)

                      = P(z<0.45)  

                      = 0.674 [using z table]

                      = 67.4%

Hence option 2 is the correct answer

Learn more about z-table here:

brainly.com/question/29283457

#SPJ2

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