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

emhart2012 Group Title

A telephone company charges customers a certain amount for the first minute of a long distance call and another amount for each additional minute. A customer makes two calls to the same city—a 31-minute call for $1.94 and a 13-minute call for $0.86. If there is a federal tax rate of 3.7% and a state tax rate of 7.4% on all long distance calls, find, to the nearest minute, the longest call to the same city whose cost will not exceed $9.00.

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. emhart2012 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    for the first half of the problem i got .14 for the cost of the first minute and then .06 for the additional minutes.. i need help solving the last question about the federal tax

    • 2 years ago
  2. xon1300 Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    I'd say add the taxes together 3.7+7.4 = 11.1% then the equation becomes y = (11.1/100)*( 0.14 + 0.6(m-1) ) does that work?

    • 2 years ago
  3. emhart2012 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    am i soppose to solve for m? or y?

    • 2 years ago
  4. emhart2012 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    im confused and its .06

    • 2 years ago
  5. xon1300 Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    you solve for m (mintute) given that y (money) equals $9

    • 2 years ago
  6. geoffb Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @xon1300 In your formula, \(y\) would only be the tax. It wouldn't include the cost of the call.

    • 2 years ago
  7. xon1300 Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    so \[y = (111.1/100)*( 0.14 + 0.06(m-1) )\] when y=9 m= what?

    • 2 years ago
  8. geoffb Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    There, that one's better. :)

    • 2 years ago
  9. xon1300 Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    hard to count ones, they marge together, lol

    • 2 years ago
  10. geoffb Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Haha yeah!

    • 2 years ago
  11. emhart2012 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you so much!! thats the same thing i did and thats why i couldn't figure it out i hade 11.1

    • 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.