Answer:
Your correct Awnsers are A and D
You would put this into a fraction
so for the salad

and for the fruit

cross multiply and
1. salad: 20% = 115 students
2. Fruit: 24% = 138 students
To get the z-value of the scores of the four students, we are going to use the formula for standard score or z-score. It is score minus the mean score, then divided by standard deviation.
z= Score (X)-Mean / SD
To find the z-value of each score, we have to use a Z table. Using the z-score, we are to look first at the y-axis of the table which will highlight the first two digits of the z-score. Then, the x-axis for the second decimal place of the z-score.
You can use this as reference for the z-table: http://www.stat.ufl.edu/~athienit/Tables/Ztable.pdf
Mean= 500SD= 100Scores= 560, 450, 640, 530
For the student who scored 560,z= X-Mean / SDz= 560-500 / 100z= 60 / 100z= 0.6
The score is 0.6 standard deviation above the mean. The z-value is 0.7257 or 72.57%.
For the student who scored 450,z= X-Mean / SDz= 450-500 / 100z= -50 / 100z= -0.5
The score is -0.5 standard deviation above the mean. The z-value is 0.3085 or 30.85%.
For the student who scored 640,z= X-Mean / SDz= 640-500 / 100z= 140 / 100z= 1.4
The score is 1.4 standard deviation above the mean. The z-value is 0.9192 or 91.92%.
For the student who scored 530,z= X-Mean / SDz= 530-500 / 100z= 30 / 100z= 0.3
The score is 0.3 standard deviation above the mean. The z-value is 0.6179 or 61.79%.
1. One eighth as a percent is 12.5 %
2. 0.063 as a percent is 6.3%
3. 34.71% live with their parents
4. 23.44% as a decimal is 0.2344
5. Each person should contribute $5
6. The proportion would be 47.57
7. 41 is 84 percent of 205
8. There are 16 students in the entire class.
9a) She took 75 shots.
9b) 24 shots, so thats 15%
10. That's 60 percent.
11. Thats $81.85
For most of these if you want the percentage just divide the number you are given into the total, then you will get a decimal, with that decimal multiply it by 100 and you will get the percent!
Answer:
The height of tower
.
Step-by-step explanation:
Diagram of the given scenario is shown below.
Given that,
Distance between John and tower is
.
Angle of elevation to the top of the tower is
°.
Height of John is
.
To Find: Height of the tower
.
So,
In triangle ΔDCE,
(∠



Now,
To calculate the height of tower we have


≈ 
Therefore,
The height of tower
.