Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ErinWeeks

Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have? (2 points)

  • one year ago
  • one year ago

  • This Question is Closed
  1. ErinWeeks
    Best Response
    You've already chosen the best response.
    Medals 0

    HELP A SISTER OUT [:

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

    do I get 2 points for answering this?

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

    ha just kidding, I think this is a a algebraic substitution problem. Let me just work it out on some paper

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

    Thank you jarobins your a big help (: !

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

    Let D be the number of dimes, Q be the number of quarters. Write an equation for the total number of coins. 1.D%2BQ=46 Write an equation for the total value of the coins. 2.10D%2B25Q=700 Multiply eq. 1 by -10 and add to eq. 2, -10D-10Q%2B10D%2B25Q=-460%2B700 15Q=240 Q=16 Then from eq. 1, D%2BQ=46 D%2B16=46 D=30 Thirty dimes and sixteen quarters.

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

    awe man. merchandise got me. But I think you got it wrong merch

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

    o nope, i double checked. Nice

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

    i think so its correct...check out

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

    Nice , one question though whats up with the %?

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

    %2B=+ sign.... is it fine

    • one year ago
    • Attachments:

See more questions >>>

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.