Results 1 to 4 of 4
Like Tree1Thanks
  • 1 Post By earboth

Math Help - Can anyone show me the solution to these answers step by step?

  1. #1
    Newbie
    Joined
    Dec 2012
    From
    Los Angeles
    Posts
    2

    Can anyone show me the solution to these answers step by step?

    |22 - 32| - |5 - 7|
    The answer, according to the book is -1 but the answer I keep getting is 1



    (3 - √9) - (-5 - 1.3)

    -3

    My book says the answer is -2.1; I don't know why or how my they subtracted subtracted .2 from 1.3. I need the solutions, all help is appreciated, please and thank you!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    earboth's Avatar
    Joined
    Jan 2006
    From
    Germany
    Posts
    5,829
    Thanks
    123

    Re: Can anyone show me the solution to these answers step by step?

    Quote Originally Posted by markb1990 View Post
    |22 - 32| - |5 - 7|
    The answer, according to the book is -1 but the answer I keep getting is 1 <--- wow!
    Are you sure that you posted the problem correctly??

    |2^2-3^2|-|5-7| =

    |4-9|-|5-7| =

    |-5|-|-2| =

    \boxed{5-2 = 3 }


    (3 - √9) - (-5 - 1.3)

    -3

    My book says the answer is -2.1; I don't know why or how my they subtracted subtracted .2 from 1.3. I need the solutions, all help is appreciated, please and thank you!
    1. The answer in the book is correct.

    2. \frac{\overbrace{(3-\sqrt{9})}^{= 0}-(-5-1.3)}{-3}=

    \frac{-(-6.3)}{-3}=

    \boxed{\frac{(-3)(-2.1)}{-3}= -2.1}
    Thanks from markb1990
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Dec 2012
    From
    Los Angeles
    Posts
    2

    Re: Can anyone show me the solution to these answers step by step?

    Sadly yes the book is right. I'm getting 3 and 1 the ways I did it but I can't seem to reach -1



    For the second part, I understand that -(-5 -1.3)/ -3 = -(-6.3)/ -3, but may I ask what you did in the boxed part? Why did you factor (- 6.3) and what happened to the - sign outside the parenthesis?

    Thank you
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member
    Joined
    Mar 2008
    From
    Pennsylvania, USA
    Posts
    269
    Thanks
    37

    Re: Can anyone show me the solution to these answers step by step?

    I am assuming the first problem was #67 in your text. You did not copy it down correctly. The textbook's solution is correct. 2 is cubed, not squared.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: November 12th 2012, 07:08 PM
  2. Replies: 8
    Last Post: May 18th 2012, 10:33 PM
  3. Replies: 1
    Last Post: August 30th 2009, 02:32 PM
  4. Replies: 3
    Last Post: June 2nd 2008, 06:37 PM
  5. Replies: 3
    Last Post: June 1st 2008, 03:50 PM

Search Tags


/mathhelpforum @mathhelpforum