Yes it is going to be easier
Answer: For the firstone i think it is A but idk for the second one.
Step-by-step explanation:
<span>4/5+5/6+7/2</span>=5.133333333
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is ![z = \pm 1.645](https://tex.z-dn.net/?f=z%20%3D%20%5Cpm%201.645)
Step-by-step explanation:
From the question we are told that
The number of observation is greater than 50 i.e. n > 50
The level of significance is ![\alpha = 0.1](https://tex.z-dn.net/?f=%5Calpha%20%20%3D%200.1)
Generally given that n > 30 then we will make use of the z table
So
From the z table the critical value corresponding to the level of significance level for a two-tailed test is
![z = \pm 1.645](https://tex.z-dn.net/?f=z%20%3D%20%5Cpm%201.645)
Answer:
2.625 cups or 21 ounces
Step-by-step explanation:
Ava needs 3/4 cup of blue paint for every 1 cup of white paint. So, the ratio is 0.75 : 1.
She has 28 ounces of white paint. But, you have to convert ounces to cups.
1 cup = 8 ounces
28 ounces ÷ 8 ounces/cup = 3.5 cups
Now set up a ratio.
![\frac{0.75}{1} = \frac{x}{3.5}](https://tex.z-dn.net/?f=%5Cfrac%7B0.75%7D%7B1%7D%20%3D%20%5Cfrac%7Bx%7D%7B3.5%7D)
X (how much blue paint is needed) is over 3.5 cups (the amount of white paint she has)
Cross multiply and divide.
![\frac{0.75}{1} = \frac{x}{3.5}](https://tex.z-dn.net/?f=%5Cfrac%7B0.75%7D%7B1%7D%20%3D%20%5Cfrac%7Bx%7D%7B3.5%7D)
x = 0.75 × 3.5
x = 2.625 cups
To convert to ounces, multiply by 8.
2.625 cups × 8 ounces = 21 ounces
Therefore, Ava needs 2.625 cups or 21 ounces of blue paint.
Hope that helps.