Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

gianellelol

  • 2 years ago

Earl has 28 coins, all dimes and quarters. How many of each does he have, if their total value is $5.20?

  • This Question is Closed
  1. mr.luna
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    d+q=5.20 .10d+.25q=5.20 sub method

  2. mr.luna
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    wait! d+q=28 sorry

  3. mr.luna
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now you sub. lets do dimes. d=28-q so sub it .10(28-q)+.25q=5.20 2.80-.10q+.25q=5.20 .15q=2.40 q=16 soooo then dimes is 12

  4. mr.luna
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    does that make sense?

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

    yes, thank u

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.