Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Steph_Rawr352

  • 2 years ago

I need help? I don't know what I did wrong in this question?

  • This Question is Closed
  1. Steph_Rawr352
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Find the amount of dimes and amount of quarters. What you know: Types of coins: dimes and quarters Total # of coins: 35 coins Dollar amount: $6.50 - d = dimes - q = quarters Work: d + q = 35 $0.10d + $0.25q = $6.50 Let’s solve the first equation for q. Subtract d from both sides. - q = -d + 35 Substitute expression for q in second equation. 0.10d + 0.25(-d + 35) = 6.50 Distribute. 0.10d – 0.25d + 8.75 = 6.50 Add like terms. 0.35d + 8.75 = 6.50 Subtract 8.75 from both sides. 0.35d = -2.25 I don't understand what to do next?

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

    third last line, you combined 0.1d and -0.25d and got 0.35d. it should be -0.15d

  3. Steph_Rawr352
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Mathmuse ohh ohk thank you I didn't see that

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

    Search OpenStudy
    • 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.