A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

A survey was conducted among 400 students of age groups 7–12 years and 13–18 years to find their favorite music genre. The students had to select any one genre out of jazz, rock, and pop. Out of the 200 students in the age group 7–12 years who participated in the survey, 142 liked rock or pop music. The total number of students of both age groups who liked jazz was 72. Using a two-way table, compute the total number of students in the age group 13–18 years who liked rock or pop music. 122 130 142 186

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Vocaloid

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how

  3. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    whoops, small correction, the circled value should be this one|dw:1438208408869:dw|

  4. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    anyway, the first row tells us that (number of kids aged 7-12 who like jazz) + (number of kids aged 7-12 who like rock or pop) = 200 find the number of kids aged 7-12 who like jazz

  5. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1438208711189:dw| I have to get going, but maybe this will help explain it a bit better?

  6. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    A + 142 = 200 A + B = 72 B + C = D 200 + D = 400 the value we want to find is C

  7. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    first find A, then B, then D, and then you can use that information to find C

  8. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    good explanation @Vocaloid

  9. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    kk

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    idk how

  11. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    srry

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Vocaloid

  13. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    to find A A+142=200 A=200-142 A=?

  14. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    58

  15. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    good now A+B=72 A=58 so 58+B=72 B=72-58

  16. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    14

  17. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    good B+C= D lets look at the last equation 200+D=400 D=400-200 D=?

  18. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    200

  19. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    good now B+C=D and B=14 and D=200 so 14+C=200 c=200-14 c=??

  20. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    186

  21. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yep

  22. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thx

  23. LynFran
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    welcome thanks to @Vocaloid

  24. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.