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2 years ago

4 2/9+4 2/9+ 4 2/9+ 4 2/9

Mathematics

2 answers:

Mandarinka [93]2 years ago

8 0

Answer:

16 8/9

Step-by-step explanation:

Since 4 2/9 is being added 4 times, it is the same as 4 2/9 times 4. We can multiply the whole number with 4 and then the fraction with 4.

4 * 4 = 16

2/9 * 4 We have to multiply the numerator by 4 and the denominator stays the same

2/9 * 4 = (2 * 4) / 9 = 8/9

Put 16 and 8/9 together to get 16 8/9.

I hope this helped and please mark me as brainliest!

shepuryov [24]2 years ago

7 0

Answer:

I would strongly recommend using a website called Desmos scientific calculator with these type of problems, not just this problem but any problem.

Step-by-step explanation:

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alex41 [277]

Answer:

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Step-by-step explanation:

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Then you have to find the slope. Rise/Run

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3 years ago

What are the opposites of these numbers

MakcuM [25]

Would it be
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3 years ago

Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

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8 0

3 years ago

Substititue 5 for x. Is the solution true?<br> 3x + 4 - x = 4x - 6

Aloiza [94]

Answer:

It's a true solution.

Step-by-step explanation:

$3(5) + 4 - 5 = 4(5) - 6$

$15 + 4 - 5 = 20 - 6$

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$14 = 14$

3 0

2 years ago

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Paladinen [302]

That's called <span>standard deviation.

Hope this helps !

Photon</span>

5 0

3 years ago