In order to know that, you need to divide 7 from 4730
It would be: 4730/7 = 675.71
So, your final answer is 675.71
Hope this helps!
Out of a sample of 80 books, 6 were historical books. So the percentage of books in the sample will be:
![\frac{6}{80}*100= 7.5](https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7B80%7D%2A100%3D%207.5%20)
%
We can use this sample to represent the entire collection of books in the library. So the best estimate of total number of historical books in the library is 7.5% of 21360 , which comes out to be:
7.5 % of 21360 =
![0.075(21360)=1602](https://tex.z-dn.net/?f=0.075%2821360%29%3D1602)
Therefore, roughly 1602 books out of 21360 book of library are historical books.
50 * 2 = 100
50 + 50 = 100
A grid with 3 rows and 52 columns is tiled with 78 identical 2x1 dominoes. How many ways can this be done such that exactly two of the dominoes are vertical?
There are 39 ways that exactly two of the dominoes are vertical.
I think the total length in inches is 88.8 inches. I think in feet it's 7.4 feet