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need help with math.

Discussion in 'Chit Chat' started by boba_Fett17, Feb 9, 2001.

  1. boba_Fett17

    boba_Fett17 Peasant

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    here is the p.
    The product of a number and 6 is decrased by 8.
    The result is 13 greater than the product of 4 and the same number increased by 3. what is the number????




    plazes help and thanks
     
  2. Keeksy

    Keeksy Peasant

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    That's simple.

    Just write the problem as an equation:

    (X x 6)-8=13+(4 x (X +3))

    Now solve for X:

    6X-8=4(X +3)+13
    6X-8=(4X+12)+13
    6X-8=4X +25
    6X=4X+33
    2X=33
    X=16.5

    16.5 is the answer

    To check the answer, plug 16.5 into the orginal equation:

    6(16.5)-8=13+ 4(16.5 + 3 )
    99-8=13+ (66+12)
    91=13+78
    91=91

    Both sides are equal, so the answer 16.5 is correct. :)

    [Edited by Keeksy on 02-09-2001 at 08:21 PM]
     
  3. 007

    007 Peasant

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    nononoo

    no it is not sorry try again. im his brother ..
     
  4. cowofwar

    cowofwar Peasant

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    Wtf. That's like grade 6 math...
     
  5. Keeksy

    Keeksy Peasant

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    Suck! How could I screw that up? I should be right now. :(
     
  6. Jakeman

    Jakeman MSC Founder and Donator

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    my brain hurts.
     
  7. Eupfhoria

    Eupfhoria Peasant

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    try changing X to P and you got it
     
  8. Keeksy

    Keeksy Peasant

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  9. KrYpTo

    KrYpTo Banned

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    i think the p at the top meant problem
     
  10. Keeksy

    Keeksy Peasant

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  11. KrYpTo

    KrYpTo Banned

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    "here is the p. "

    someone who posted thought that meant solve for p

    you solved for x

    the person thought p

    but the p might only mean "problem" for short
     
  12. Hannibal~MAC

    Hannibal~MAC Peasant

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    I take collage level History and Science yet i'm in sped ed math...go figure.........
     
  13. Eupfhoria

    Eupfhoria Peasant

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    weeeee! mass confusion?
    can we solve for L now? L doesn't get much attention! unless you are dealing with aline then maybe you should try g g doesn't get much attention either
     
  14. cowofwar

    cowofwar Peasant

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    Um...This makes me think how an ESL math class would be like. Ugh.

    We need a clear and concise written question to be able to answer it.
     
  15. boba_Fett17

    boba_Fett17 Peasant

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    its high school math

    is anyone going to help me

    I have the answer to the probelm

    the answer in one of the answers is wrong.
    The answer should be
    33/2
    Thats what it says in the book.

    No math teacher out there to help with this problem
    Oh well
     
  16. KrYpTo

    KrYpTo Banned

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    33/2 = 16.5 = p = x
     
  17. Sparhawk

    Sparhawk Peasant

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    Re: its high school math

    6x - 8 = 4(x+3) + 13 (expand the brackets and add like terms)
    6x - 8 = 4x + 25 (add 8, both sides)
    6x = 4x + 33 (subtract 4x, both sides)
    2x = 33 (divide by 2 both sides)
    x = 33/2

    :)

    Now, don't even THINK of asking me about calculus.
     
  18. boba_Fett17

    boba_Fett17 Peasant

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    ok

    ok i see know thanks you are very smart guys,
     
  19. cowofwar

    cowofwar Peasant

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    Don't make me start dishing out calculus!
     
  20. Autolycus

    Autolycus Forum Moderator

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    f(x) = i hate math
     

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