Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

linh

  • 2 years ago

Please help On a test, each correct answer scores 5 points, each incorrect answer scores -2 points and each question left unanswered scores 0 points. A) Suppose you answered all 20 questions on the test. What is the greatest number of questions you can answer incorrectly and still get a positive score? Explain your answer....

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

    Are you on a test?

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

    Let the number of correctly answered questions be \(x\). Then the number of incorrectly answered questions is \(20 -x\). The number of points you get on this test is given by \(5x -2(20 - x)\). Can you solve the inequality \(5x - 2(20 - x) > 0\)?

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

    sorry i did mistake. it is incorrect, my answer.

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

    \(7x - 40 > 0\). Now what are the values for \(x\)? When you get that, find the values for \(20 - x\). You'd get your answer

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

    No I am not on a test......it says on a test

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

    In*

  7. 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.