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Tom [10]
3 years ago
13

How do you turn a decimal in to a fraction

Mathematics
1 answer:
swat323 years ago
4 0
It depends on how many decimal places there are.

If it has one decimal place, like 0.2, it's called 'two tenths' or 2/10.
If it has two decimal places, like 0.34, it's called 'thirty-four hundredths' or 34/100.
If it has three decimal places, like 0.842, it's called 'eight hundred forty-two thousandths' or 842/1000.

And so on...

Afterwards you can simplify the fraction by finding the greatest common factor(GCF) of the numerator and denominator, then dividing the numerator and denominator by that number.
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A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained p
wel

Answer:

A sample size of 1380 should be obtained.

Step-by-step explanation:

Minimum sample size:

The minimum sample size is of:

n = (\frac{z}{E})^2(p_1(1-p_1) + p_2(1-p_2))

In which z is the critical value, related to the confidence level, E is the desired margin of error, p_1 and p_2 are the proportions.

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

Estimates of 22.6​% male and 18.1​% female from a previous​ year

This means that p_1 = 0.226, p_2 = 0.181.

Within 3 percentage points, minimum sample size:

This is n for which E = 0.03. So

n = (\frac{z}{E})^2(p_1(1-p_1) + p_2(1-p_2))

n = (\frac{1.96}{0.03})^2(0.226*0.774 + 0.181*0.819)

n = 1379.4

Rounding up:

A sample size of 1380 should be obtained.

8 0
3 years ago
A group of students is collecting books to add to their librarby. The table shows the number of books in the librarby after 1, 3
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Answer:

(7,48)

Step-by-step explanation

the books go up by ten  and the days go up by 2

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Find the equation of the linear function represented by the table below in slope-intercept form.
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es x positivo por qué y es negativo

Step-by-step explanation:

me entendiste

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Step-by-step explanation:

so sorry if its wrong

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