please help!!!
19.
Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use the Venn diagram below:
a. How many students take exactly 2 classes from Mr.Green?
Tell me what the venn diagram gives you, then I can help you understand :)
Ann it is most definitely 17, please trust me ;)
How though?
how?
To determine the number of students who take exactly two classes from Mr. Green, we need to find the intersection of the sets representing each combination of classes.
From the given information, we know:
- The number of students taking band is 25.
- The number of students taking both band and choir is part of the overlap of the sets representing band and choir.
- The number of students taking both math and choir is 9.
Using these pieces of information, we can fill out the Venn diagram as follows:
___25___
| |
| 48 |
|_________|
9 19
Now, to find the number of students who take exactly two classes, we need to count the number of students in the intersection area. From the diagram, we can see that this number is 19.
Therefore, the number of students who take exactly two classes from Mr. Green is 19.
18) You can make a stem-and-leaf plot as frequency table for "The chart below shows the average number of movies seen per person in selected countries. "
0 / . 5
1 / . 2 , . 3 , .3 , . 5
2 / . 2 , . 2 , . 2
3 / 0 , 0
4 / .5
19.) Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 9 students who have Mr. Green for math and nothing else. Use the Venn diagram below: How many students take exactly 2 classes with Mr. Green?
Answer: 26 students take exactly 2 classes check the work below.
25 - ( 7 + 3 + 11) Use order of operations or pemdas
25 - ( 21 ) = 4 ** students who take both Band and Choir
Add 11 + 7 + 3 + 4 + 17 + 9 = 51
Subtract 57 - 42 = 15***Students take Math and Choir
Add 15 + 4 + 7 , these are the sections in the Venn Diagram where two circles share the same space.
15 + 4 + 7 = 26 ***** ANSWER
26 students take exactly two classes.
20.) Another stem-and-leaf plot problem.
| Percentage of
Countries | Households with Color Television
9| 3
6| 9
9| 5
8| 8
9| 4
6| 4
9| 2
8| 8
1| 00
9| 1
9| 7