Page 1 of 2 12 LastLast
Results 1 to 15 of 17

Math Help - Re-arrange

  1. #1
    Newbie
    Joined
    Feb 2011
    Posts
    10

    Question Re-arrange

    Re-arrange in terms of P:

    P = x + SPT / 100

    Thank you.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    What are you solving for? P?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Feb 2011
    Posts
    10
    Quote Originally Posted by Ackbeet View Post
    What are you solving for? P?
    Yes.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    Ok, so what's the usual first step? Or what have you done so far?
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Feb 2011
    Posts
    10
    P - SPT/100 = x

    P.S. I don't need a worked solution- but I do need to re-arranged pretty quickly (it's not school work).
    Follow Math Help Forum on Facebook and Google+

  6. #6
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    That's correct. What's next?
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Newbie
    Joined
    Feb 2011
    Posts
    10
    I don't know. That's why I'm here.
    Follow Math Help Forum on Facebook and Google+

  8. #8
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    Quote Originally Posted by rome View Post
    I don't know. That's why I'm here.
    That's fine. That's why we're here, as well: to help you get unstuck. Try factoring the P out. What do you get next?
    Follow Math Help Forum on Facebook and Google+

  9. #9
    Newbie
    Joined
    Feb 2011
    Posts
    10
    Like this?

    P - P(ST/100) = x
    Follow Math Help Forum on Facebook and Google+

  10. #10
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    Well, that's certainly not incorrect, but can't you factor even more?
    Follow Math Help Forum on Facebook and Google+

  11. #11
    Newbie
    Joined
    Feb 2011
    Posts
    10
    How do you mean? Surely P-P=0 ?
    Follow Math Help Forum on Facebook and Google+

  12. #12
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    No, I was thinking more like this:

    P - P(ST/100) = x

    P(1- ST/100) = x.

    That's because of the distributive law. Do you see how that's done?
    Follow Math Help Forum on Facebook and Google+

  13. #13
    Newbie
    Joined
    Feb 2011
    Posts
    10
    Edit: posted this before I saw your post

    Hold on, like this:

    P - PST(0.01) = x

    ?
    Follow Math Help Forum on Facebook and Google+

  14. #14
    Newbie
    Joined
    Feb 2011
    Posts
    10
    Quote Originally Posted by Ackbeet View Post
    No, I was thinking more like this:

    P - P(ST/100) = x

    P(1- ST/100) = x.

    That's because of the distributive law. Do you see how that's done?
    I think so. Thank you.
    Follow Math Help Forum on Facebook and Google+

  15. #15
    A Plied Mathematician
    Joined
    Jun 2010
    From
    CT, USA
    Posts
    6,318
    Thanks
    4
    Awards
    2
    Can you finish? What condition do you think you'll need to mention as a caveat?
    Follow Math Help Forum on Facebook and Google+

Page 1 of 2 12 LastLast

Similar Math Help Forum Discussions

  1. re-arrange
    Posted in the Algebra Forum
    Replies: 3
    Last Post: May 4th 2011, 10:24 AM
  2. Re-arrange-ment
    Posted in the Algebra Forum
    Replies: 1
    Last Post: May 6th 2010, 04:55 PM
  3. how to re-arrange this
    Posted in the Algebra Forum
    Replies: 6
    Last Post: November 13th 2009, 06:27 PM
  4. Re-arrange to find x help....
    Posted in the Algebra Forum
    Replies: 3
    Last Post: June 12th 2009, 05:30 AM
  5. arrange 2^75, 3^50, 7^25
    Posted in the Algebra Forum
    Replies: 1
    Last Post: December 19th 2007, 02:07 AM

Search Tags


/mathhelpforum @mathhelpforum