25 : 9 = 2.777...
18
----
=70
63
-----
70
63
-------
70
63
----------
7
Answer:
C. -0.86
Step-by-step explanation:
let me know if you need an explanation. it's on a calculator.
Answer:
C. We have made a correct decision
Step-by-step explanation:
Hypotheses are:
: mu is less than or equal to 47
: mu is greater than 47
Type I error happens when we reject the null hypothesis but the null hypothesis was true
Type II error happens when we fail to reject the null hypothesis but the null hypothesis was wrong.
In this example we concluded that <em>mu is greater than 47,</em> thus we reject the null hypothesis. Since true mean is 52, this conclusion is true. We have made a correct decision
of
is ![6\frac{1}{7}](https://tex.z-dn.net/?f=6%5Cfrac%7B1%7D%7B7%7D)
Solution:
Given
of what number is
.
Let us first convert the mixed fraction into improper fraction.
![$2\frac{2}{3}=\frac{(2\times3)+2}{3}=\frac{8}{3}](https://tex.z-dn.net/?f=%242%5Cfrac%7B2%7D%7B3%7D%3D%5Cfrac%7B%282%5Ctimes3%29%2B2%7D%7B3%7D%3D%5Cfrac%7B8%7D%7B3%7D)
![$6\frac{1}{7}=\frac{(6\times7)+1}{3}=\frac{43}{3}](https://tex.z-dn.net/?f=%246%5Cfrac%7B1%7D%7B7%7D%3D%5Cfrac%7B%286%5Ctimes7%29%2B1%7D%7B3%7D%3D%5Cfrac%7B43%7D%7B3%7D)
Now, let us take the unknown number be x.
![$2\frac{2}{3}\times x=6\frac{1}{7}](https://tex.z-dn.net/?f=%242%5Cfrac%7B2%7D%7B3%7D%5Ctimes%20x%3D6%5Cfrac%7B1%7D%7B7%7D)
![$\frac{8}{3}\times x=\frac{43}{7}](https://tex.z-dn.net/?f=%24%5Cfrac%7B8%7D%7B3%7D%5Ctimes%20x%3D%5Cfrac%7B43%7D%7B7%7D)
Do the cross multiplication.
![$ x=\frac{43}{7}\times\frac{3}{8}](https://tex.z-dn.net/?f=%24%20x%3D%5Cfrac%7B43%7D%7B7%7D%5Ctimes%5Cfrac%7B3%7D%7B8%7D)
![$ x=\frac{43\times3}{7\times8}](https://tex.z-dn.net/?f=%24%20x%3D%5Cfrac%7B43%5Ctimes3%7D%7B7%5Ctimes8%7D)
![$ x=\frac{129}{56}](https://tex.z-dn.net/?f=%24%20x%3D%5Cfrac%7B129%7D%7B56%7D)
Now, again change the improper fraction into mixed fraction.
![$ x=2\frac{17}{56}](https://tex.z-dn.net/?f=%24%20x%3D2%5Cfrac%7B17%7D%7B56%7D)
Hence
of
is
.
Answer:
9 t-shirts
Step-by-step explanation:
divide 5 by 48 you will get 9.3 but that is not what it is asking it how many t-shirts can they total