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4 years ago

It takes 343434 minutes for 666 people to paint 666 walls. how many minutes does it take 181818 people to paint 181818 walls?

2 answers:

4 0

Let the time spent by 181818 people to paint 181818 walls be X. we can calculate for X by using this formula.
666: 343434 minutes
181818:X
cross multiply
666X=343434 x 181818
X=93757482

Oliga [24]4 years ago

3 0

LOL i see what you are trying to write here. You copy and pasted a Khan academy question and it repeated all of the numbers.

You meant 34, 6, 6, 18, and 18, right? Anyways, your answer will be 34. Hope this has helped you!

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lys-0071 [83]

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2 years ago

Noon of a certain day, when 5 pens and 3 pencils were placed in a drawer, the ratio of the number of pens to the number of penci

yKpoI14uk [10]

The question is probably incomplete. What i am assuming is that the person might ask for the previous ratio or the total number of pens and pencil in the drawer.

So if it is the previous ratio it obviously would be 47 - 5 : 17 -3 so 42 : 14 and in case he or she is asking for the total number of pens and pencils in the drawer before so they were 42 + 14 hence 56.

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3 years ago

James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the employee training programs of AFB banks.

BartSMP [9]

Answer: (24.02,25.98)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given : Sample size : n= 100

Sample mean : $\overline{x}=25\text{ hours}$

Standard deviation : $\sigma=5\text{ hours}$

Significance level : $\alpha: 1-0.95=0.05$

Critical value : $z_{\alpha/2}=1.96$

The confidence interval for population mean is given by :-

$\overline{x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=25\pm(1.96)\dfrac{5}{\sqrt{100}}\\\\=25\pm0.98\\\\=(25-0.98,\ 25+0.98)=(24.02,25.98)$

Hence, the 95% confidence interval for the population mean of training times is (24.02, 25.98).

5 0

4 years ago

Easy 6th grade question

Ivan

Answer:

1/4

Step-by-step explanation:

There are 54 cards in a deck including jokers, so if you count how many face cards there are and jokers and subtract them from 54 you get 40, then you divide 40 by 2 to get 20/40 since it is even numbered and half of the time you would get an even number. then you divide the die by 2 to get 1/2 and multiply them to get your answer 1/4.

Oops some miscalculations.

More miscalculations.

4 0

4 years ago

Read 2 more answers

Select all the correct answers.

Alexus [3.1K]

Answer:

B.Do you have a full-time job?

Step-by-step explanation:

B because having a full time job is very important.

Hope that was helpful.Thank you!!!

7 0

4 years ago