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

AmberCat21 Group Title

1/2x=15

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. ParthKohli Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Multiply both sides by 2.

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

    And you're done.

    • 2 years ago
  3. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    why 2?

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

    OK, let's think of it this way: divide both sides by \(\large {1 \over 2}\).

    • 2 years ago
  5. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    and what do u mean multiply?

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

    Multiplication... is... the... basic... thing... they... teach... you... in... multiplication... tables.

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

    Remember this? 2 x 1 = 2 2 x 2 = 4 2 x 3 = 6 2 x 4 = 8 2 x 5 = 10 2 x 6 = 12

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

    Basically, you just wanna get the \(\rm x\) alone.

    • 2 years ago
  9. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i'm sorry why do we multiply 2 to both sides is what i meant ;)

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

    Think of it this way: we must divide both sides by \(\Large {1 \over 2}\) which just means multiplying 2. Right?

    • 2 years ago
  11. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

    • 2 years ago
  12. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    we multiply x by 2?

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

    Both sides.

    • 2 years ago
  14. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    can u demonstrate?

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

    \[\rm {1 \over 2}x\cdot 2 = {15 \cdot 2} \]

    • 2 years ago
  16. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    then the answer will be?

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

    \[15 \cdot 2\]

    • 2 years ago
  18. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok..so WHAT IF 1/2x is equals to 3..and it will look like 3/2=30?

    • 2 years ago
  19. jazy Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    What do mean if (1/2)x = 3? You multiplied by 2 in order to isolate the x...to let it alone on one side. So: \[x = 15 \times 2\]

    • 2 years ago
  20. AmberCat21 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    why do we multiply it with 2 then?

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

    As said above, we divide by one-half which is the same as multiplying 2.

    • 2 years ago
  22. jazy Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    To UNDO the (1/2)x we multiply by 2. We want to solve for x, find it's value. So we need it isolated on one side.

    • 2 years ago
  23. jazy Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Once you multiply by 2, the (1/2) is gone.

    • 2 years 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.