A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Jims 2nd test score was 8 points higher than his 1st tests score his 3rd score was 88.he had a 'B' average (between 80 and 89, inclusive ) for the 3 test what can you conclude about his first test score? it was between?

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

    it would be lower

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

    Let x represents the score on the first test Then, the score on the second test was x+8 His average for all 3 tests was (x + x+8 + 88)/3=(2x+96)/3 I would use inequality to be faster... 80≤(2x+96)/3≤89 Now solve for x: (80*3-96)/2≤x≤(89*3-96)/2 72≤x≤85.5 So, his first test score was between 72 and 85.5 inclusive

  3. 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.