Results 1 to 4 of 4

Math Help - Simple question!

  1. #1
    Newbie
    Joined
    Oct 2007
    Posts
    13

    Simple question!

    I never really got the hang of inequalities, anyway, i've got:

    -11t > -40

    so is this equal to:

    t > 3.6

    or

    t < 3.6 ????

    Thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by curlywurlysqurly View Post
    I never really got the hang of inequalities, anyway, i've got:

    -11t > -40

    so is this equal to:

    t > 3.6

    or

    t < 3.6 ????

    Thanks
    it is t < 3.6

    we flip the inequality sign around if: (1) we multiply/divide by a negative number and (2) if we take the inverse of both sides
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Oct 2007
    Posts
    13
    ahhh ok, thank you very much!
    xx
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member JaneBennet's Avatar
    Joined
    Dec 2007
    Posts
    293
    Quote Originally Posted by Jhevon View Post
    and (2) if we take the inverse of both sides
    Only if both sides are of the same sign.

    \frac{1}{3}\ <\ 2
    3\ >\ \frac{1}{2}

    but

    -\frac{1}{3}\ <\ 2
    -3\ \color{red}<\color{black}\ \frac{1}{2}
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Really simple question too hard for a simple mind
    Posted in the Statistics Forum
    Replies: 2
    Last Post: October 5th 2010, 08:03 AM
  2. Easy Question - Simple Interest, Simple Discount
    Posted in the Business Math Forum
    Replies: 0
    Last Post: September 21st 2010, 08:22 PM
  3. Replies: 4
    Last Post: May 4th 2010, 09:08 AM
  4. Simple Integral Question (I think it's simple)
    Posted in the Calculus Forum
    Replies: 7
    Last Post: February 13th 2010, 02:37 PM
  5. Replies: 1
    Last Post: May 30th 2009, 02:59 PM

Search Tags


/mathhelpforum @mathhelpforum