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larisa86 [58]
3 years ago
10

How to get 6.9 as a fraction

Mathematics
2 answers:
finlep [7]3 years ago
8 0
6 9/10 is what 6.9 is in fraction form
liberstina [14]3 years ago
4 0
6 9/10 is how you do it.
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What is 57.4% as a decimal
Nostrana [21]
57.4% = 0.574 in decimal form. Hope I helped!
4 0
3 years ago
Element A combines with Element B at a ratio of 2:1 to make a particular substance. If you have 10 grams of element A in the sub
Marina86 [1]
If its a 2:1 ratio then 5.
5 0
2 years ago
From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.
zzz [600]

Answer: (20.86, 22.52)

Step-by-step explanation:

Formula to find the confidence interval for population mean :-

\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}

, where \overline{x} = sample mean.

z*= critical z-value

n= sample size.

\sigma = Population standard deviation.

By considering the given question , we have

\overline{x}= 21.69

\sigma=3.23

n= 58

Using z-table, the critical z-value for 95% confidence = z* = 1.96

Then, 95% confidence interval for the amount of time spent on administrative issues will be :

21.69\pm (1.96)\dfrac{3.23}{\sqrt{58}}

=21.69\pm (1.96)\dfrac{1.7}{7.61577}

=21.69\pm (1.96)(0.223221)

\approx21.69\pm0.83

=(21.69-0.83,\ 21.69+0.83)=(20.86,\ 22.52)

Hence, the 95% confidence interval for the amount of time spent on administrative issues = (20.86, 22.52)

7 0
3 years ago
There are 200 9th graders in the freshman class. 2/5 of the students are girls. How
alekssr [168]

Answer: 80

Step-by-step explanation:

7 0
2 years ago
Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Check all that apply.
Katyanochek1 [597]

The correct answer is –6x + 15 < 10 – 5x.

We can tell this by solving for x.

–3(2x – 5) < 5(2 – x) ----> Multiply to the parenthesis.

-6x + 15 < 10 - 5x ----> This is answer #3 and now we add 5x to both sides

-x + 15 < 10 ----> subtract 15 from both sides

-x < -5 ----> Divide by -1

x > 5 (Note that you have to change the direction of the sign when dividing by a -1. Therefore it does not match answer #1).

5 0
3 years ago
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