X = 5
Isolate the variable by dividing each side by factors that don’t contain the variable.
Answer:
Yes, evidence shows that the cream will improve the skin of more than 40% of women over the age of 50 in 0.01 significance level.
Step-by-step explanation:
We need to make a hypothesis test.
Let p be the proportion of women who used cream report skin improvement.
: p=0.4
: p<0.4
To test the hypothesis, we need to calculate z-score of the sample mean and compare its probability with the significance level.
z=
where
- p(s) is the sample proportion of women reported improvement (0.5)
- p is the proportion assumed under null hypothesis. (0.4)
- N is the sample size (70)
Putting the numbers:
z=
≈ 1.71
And P(z<1.71) ≈ 0.955. Since 0.955>0.01 we fail to reject the null hypothesis that the cream will improve the skin of more than 40% of women.
<em><u>ANSWER</u></em>
<em>Since </em><em>probably </em><em>part </em><em>of </em><em>the</em><em> </em><em>pie </em><em>was </em><em>already </em><em>eaten </em><em>therefore </em><em>we </em><em>find </em><em>the </em><em>fration </em><em>of </em><em>the </em><em>pie </em><em>in </em><em>the </em><em>beginning</em><em> </em><em>which </em><em>is</em>
<em>=</em><em> </em><em>1</em><em> </em>
<em>=</em><em> </em><em>5</em><em>/</em><em>5</em>
<em><u>Fraction </u></em><em><u>William </u></em><em><u>ate;</u></em>
<em>=</em><em> </em><em>3</em><em>/</em><em>4</em><em> </em><em> </em><em>of </em><em>1</em>
<em>=</em><em> </em><em>3</em><em>/</em><em>4</em><em> </em><em>of </em><em>5</em><em>/</em><em>5</em>
<em>=</em><em> </em><em>3</em><em>/</em><em>4</em><em> </em><em>×</em><em> </em><em>5</em><em>/</em><em>5</em>
<em>=</em><em> </em><em>3</em><em>/</em><em>4</em>
<em> </em>
<em><u>CONCLUSION</u></em>
A fraction is a part of a whole so no matter how the fraction would increase or decrease the part William ate will remain the same
Answer:
D
Step-by-step explanation:
Proportional relationships come in the form
![y=kx](https://tex.z-dn.net/?f=y%3Dkx)
and
is the constant of proportionality. By comparing the general case
and your specific case
, you can see that in your case
.
X/32= 25/100
100x, 800
800 divided by 100= 8
X = 8 games