A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Infinexa

  • one year ago

Use these clues to guess the mystery number. It is an odd number. It is greater than 142. It is less than 156. Rounded to the nearest ten, the rounded value is less than the mystery number. Rounded to the nearest hundred, the rounded value is greater than the mystery number. Enter one number that could be the mystery number

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

    @DarrenMadx

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

    i'm sorry im not good at these problems

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

    I really hate math

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

    its fine

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

    @superman36

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

    so what do you t

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

    think

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

    @ShadowLegendX

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

    @VampirePrincess159 @Destinyyyy @quizz @wio @FireKat97 hellp

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

    idk how to do it ma im sorry

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

    iz fine

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

    @ParthKohli

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

    Sorry Ive never solved a problem like this.. Maybe these people can help- @freckles @Nnesha @IrishBoy123 @welshfella @whpalmer4

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

    well the mystery number assuming its an integer must be 143, 145, 147, 149 , 151, 153 or 155

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

    now you need to check out the rounding

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

    Hint 143 is rounded to nearest 10 is 140 (I'm not saying it is 143 but its a possibiilty)

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

    151 and 153 rounded to the nearest 10 is 150 which is also less that these numbers.

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

    - now you need to check the last condition - the number rounded to the nearest 100.

  19. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Odd numbers meeting the range criteria will be \[143,145,147,149,151,153,155\] For the mystery number rounded to the nearest \(10\) to be less than the mystery number, that means the units digit must be less than \(5\), or we would round it up: \[0\rightarrow0\]\[1\rightarrow 0\]\[2\rightarrow 0\]\[3\rightarrow 0\]\[4\rightarrow 0\]\[5\rightarrow 1\]\[6\rightarrow 1\]\[7\rightarrow 1\]\[8\rightarrow 1\]\[9\rightarrow 1\] That means our mystery number must end in an odd digit which rounds to \(0\), which leaves only \(1\) and \(3\) as possible last digits. For the mystery number rounded to the nearest \(100\) to be greater than the mystery number, it should be clear upon a bit of thinking that the 10s digit must be one from the table which rounds up rather than down. Combine that with your options for the final digit and you should have your two possible answers.

  20. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    That was a bit unclear; I apologize. \(0\) in the right hand side of the table means "round down" and \(1\) means "round up".

  21. 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.