A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

help! :)

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Vocaloid

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

    Alex and Lara have $21.00 each to spend at a book fair, where all students receive a 35% discount. They both want to purchase a copy of the same book, which normally sells for $28.50 plus 10% sales tax. To check if he has enough to purchase the book, Alex takes 35% of $28.50 and subtracts that amount from the normal price. He takes 10% of the discounted selling price and adds it back to find the purchase amount. Lara takes 65% of the normal purchase price and then computes 110% of the reduced price. Is Alex correct? Is Lara correct? Do they have enough money to purchase the book? Explain your answer using complete sentences.

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

    both methods of calculation give the same result, so both Alex and Lara are correct to figure out if they have enough money, calculate the cost of the book and see if it is below 21

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

    is that the answer?

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

    that's not the full answer, I told you to calculate the cost of the book

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

    oh ok

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

    how do i calculate the cost of the book?

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

    the original price of the book is 28.50, now calculate 65% of 28.50

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

    19.38

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

    check your math again

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

    do i add, subtract, or divide?

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

    65% of 28.50 = .65*28.50 = ?

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

    18.525

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

    good, now calculate 110% of 18.525

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

    2.03775

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

    nope, not quite 1.10*18.525 = ?

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

    20.3775

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

    good, now read the question again and tell me the answer

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

    um.. i dont know... Both methods of calculation give the same result, so both Alex and Lara are correct. To figure out if they have enough money, we have to calculate the cost of the book and see if it is below 21. So first we do 65% of 28.50 = .65*28.50 = 18.525. Then we do 110% of 18.525 = 1.10 * 18.525= 20.3775. Thats all i got.. can you finish it off for me please :)

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

    well, can Alex and Lara buy the book?

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

    nope

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

    read the problem again

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

    oh wait yes

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

    good

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

    so then what do i write at the end to finish it?

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.