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

babystar16

airline fares for a flight from dallas to austin are $30 for first class and $25 for tourist class. if a flight had 52 passengers who paid a total of $1360, how many first class passengers were on the trip?

  • one year ago
  • one year ago

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

    Let F be the number of number of first class passengers Let T be the number of tourist class passengers. $30 per (F)first class + $25 per (T)tourist class = $1360. \[30F + 25T = 1360\]Total number of passengers is 52. \[F + T = 52\] So we have a system of 2 equations, with 2 unknowns. To solve this, we can use either substitution or elimination. Are you familiar with either method? c:

    • one year ago
  2. babystar16
    Best Response
    You've already chosen the best response.
    Medals 0

    yes i just had problems solving it

    • one year ago
  3. zepdrix
    Best Response
    You've already chosen the best response.
    Medals 0

    \[F+T=52\]\[T=52-F\] Plugging this into the other equation gives us. \[30F+25T=1360\]\[30F+25(52-F)=1360\]\[30F+1300-25F=1360\]\[5F=60\]\[F=12\] So that's how we would find F. Confused about any of the steps? :o

    • one year ago
  4. zepdrix
    Best Response
    You've already chosen the best response.
    Medals 0

    This is the substitution method :3

    • one year 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.