Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

brookester6

  • 2 years ago

A coin bank contains 250 coins, all dimes and quarters. Together the coins total $39.95. How many quarters are in the coin bank? How many dimes are in the coin bank? I do know i have to use the numbers in an equation, making quarters X and dimes Y. I think I set it up like this... x+y = 39.25 and x+y= 250....i think idk :) Help me please <3

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

    Second equation is right, but for the first one its cost...a quarter is .25 and dime is .10 .25x+.10y=39.25

  2. brookester6
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so would i graph, substitute, or do combination???

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

    Any, but substitution would probably be easiest. You can solve for y in the second equation easy y=250-x and plug that into the other

  4. brookester6
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the do i plug y into the first equation?

  5. brookester6
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @CalebBeavers

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

    Yep so youve got .25x+.10(250-x)=39.25 now can you solve for x?

  7. brookester6
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah thanks :)

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

    Yeah i just noticed it only wants the number of dimes, so once you have x which is the number of quarters just plug it into x+y=250 to get number of dimes

  9. brookester6
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay will do :) thanks again!! lol

  10. 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.