A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

In a poll in a school, students picked whether they liked apples or oranges more. The ratio for this was 5:8. Five absent students were polled the next day and each of them preferred apples and the new ratio was 5:6. How many people were originally polled?

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

    Say there are x students of which y like apples y:x-y = 5:8 y+5:x-y =5:6

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

    You arent making any sense. whats the answer then?

  3. dumbcow
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    it might be easier to look at it in fraction form y/(x-y) = 5/8 (y+5)/(x-y) = 5/6 y is the students who like apples, x is the total num of students x-y students like oranges you have to solve the system of proportions for x and y

  4. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wouldnt the denominator for the second one be (x-y+5)

  5. dumbcow
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    no because the num of students that liked oranges did not change

  6. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay

  7. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so... what next?

  8. dumbcow
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    i would solve one of the equations for y, then substitute into the other equation in order to find x

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

    what do you get as your answer?

  10. dumbcow
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    x = 39 y = 15

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

    Thats correct! I'm a bit slow on systems... Thanks for showing me how to do it.

  12. 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.