A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

If p varies directly with q, and p = 10 when q = 2, what is the value of p when q = 20? A. p = 28 B. p = 100 C. p = 1 D. p = 40

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

    what 's the equation for direct variation ??

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

    i dont remember and i suck at it

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

    direct variation y = kx y varies directly with x :-)

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

    Well it is just a ratio

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

    okay yeah i remember that now

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

    alright so p varies directly with q write an equation

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

    Don't you just multiply p•5?

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

    100?

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

    nope what's the equation p varies directly with q ?

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

    y varies directly with q y = kx now replace y by p and x by q

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

    whaaaaaa

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

    \[10=k2\] ?

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

    ?

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

    sorry intnt gt disconnected

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

    that's right solve for k

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

    k=5?

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

    right \[\huge\rm p=2q\] substitute q value solve for p

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

    okay so what would it be when its 20?

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

    yes right

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

    ?

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

    ohh sorry i thought u said q would be 20 .-.

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

    so replace q by 20 solve for p

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

    \(\color{blue}{\text{Originally Posted by}}\) @Nnesha right \[\huge\rm p=2q\] substitute q value solve for p \(\color{blue}{\text{End of Quote}}\) q=20 plug in

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

    40!

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

    @Nnesha ?

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

    yes

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

    thanks:)

  28. 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.