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

moms3angels Group Title

Ricardo Gutierrez has a box of coins that he uses when playing poker with friends. The box currently contains 46 coins, consisiting of pennies, dimes, and quarters. The number of pennies is equal to the number of dimes, and the total value is $4.87. How many of each denomination of coin does he have?

  • 2 years ago
  • 2 years ago

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

    Let x be the number of pennies. Since the number of pennies and the number of dimes are equal, x is also the number of pennies. And 46-(x+x); 46-2x be the number of quarters. It is already established that the value of pennies is $0.01, dimes $0.10 and quarters $0.25. (x)(.01)+(x)(.10)+(46-2x)(.25)=4.87 => establishing the equation (x)(1)+(x)(10)+(46-2x)(25)=487 => mult by 100 to computer easily 11x + 1150 - 50x = 487 663 = 39x x = 17 All in all, there are 17 pennies, 17 dimes and 46-(2*17); 12 quarters.

    • 2 years 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.