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ludmilkaskok [199]
2 years ago
10

7 out of 28 is what percent?

Mathematics
2 answers:
jeka57 [31]2 years ago
8 0
Here's what I did and I checked it So it is correct!!

\frac{7}{28} = \frac{1}{4}

\frac{1}{4} = 0.25

25% is your answer.

28 \times 25\% = 7

--------------------------------------------------------

I hope that helps you!! Any more questions please feel free to ask!!
likoan [24]2 years ago
7 0
-The first step is to divide 7 by 28 to get the answer in decimal form.

7/28 = 0.2500

-Then we multiply the answer form the first step by one hundred to get the answer as a percentage.

0.2500* 100= 25.00%
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Answer:

0.8

Step-by-step explanation:

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2 years ago
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A sport analyst wants to determine the mean salary of a Baseball player for 2015. He believes an estimate of this average salary
djyliett [7]

Answer:

<em>The large sample size 'n' =  199.6569≅ 200</em>

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given Standard deviation of salary for all baseball players for 2015 is about $5,478,384.55

<em>Standard deviation of  of salary for all baseball players for 2015 </em>

<em>   (S.D ) σ =  $5,478,384.55</em>

Given estimate of this average salary for all baseball players for 2015

                          =  $497,000

<em>Given Margin of error of error is  =  $497,000 </em>

<em>Level of significance ∝ = 80% </em>

<em>The critical value Z₀.₂₀ = 1.282  </em>

<u><em>Step(ii):</em></u><em>-</em>

<em>Margin of error of error is  determined by</em>

<em>           </em>M.E = \frac{Z_{0.20} S.D}{\sqrt{n} }<em></em>

<em>          </em>497,000 = \frac{1.282 X 5,478,384.55}{\sqrt{n} }<em></em>

Cross multiplication , we get

 \sqrt{n}  = \frac{1.282 X 5,478,384.55}{497,000 }

On calculation , we get

√n = 14.13

<em>Squaring on both sides, we get</em>

n = 199.6569

<u><em>Conclusion</em></u><em>:-</em>

<em>The large sample size 'n' =  199.6569≅ 200</em>

<em>    </em>

<em></em>

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Answer:

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simplify:

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combine like terms:

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subtract 14 from each side of the equation:

9x = 153

divide both sides by 9:

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Zach read a book for 10 minutes every weekend in the first month, 20 minutes in the second month, 40 minutes in the third month,
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Workings in the attachments below. The green line is the function that has been set up for Victoria. The lines that form a curved looking graph belong to the function that was set up for Zach.

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