off topic - algebra, what am i doing wrong?

Discussion in 'The Lounge' started by igzekyativ, Jul 30, 2010.

  1. igzekyativ

    igzekyativ Well-Known Member
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    Jun 7, 2010
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    here is my delima..

    suppose that person A makes $13/hr and person B makes $20/hr. Understand that it would take person A ~ 7.6923 hours to make $100; it would take person B 5 hours to make $100.

    If they wanted to split something that cost $100 and have it so that the amount they paid makes it so they both had to put in the same amount of hours, how would you solve...

    I came up with the following equation because (person A should pay an amount based on a ratio of what they make vs what person b makes and then add person B's payment to get $100) $60.50(13/20) + $60.50 ~ $100 or 39.33 + 60.50 ~ $100

    x(13/20) + x = $100
    x + x = $100/(13/20)
    2x = $153.84615
    x = $76.923

    but when i plug the number into the equation, it does not equal $100.. x should equal something near $61.75..

    where am i going wrong?
     

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  2. You want a guy that makes $13/hr and a guy that makes $20/hr to work identical hours and their combined wages equal $100?
     
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  3. F14Scott

    F14Scott Active Member
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    Jun 25, 2010
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    h = number of hours both people must work

    13h + 20h = 100

    33h = 100

    h = 100/33 = 3.03 , both people work 3 hours

    person a earns $39
    person b earns $60
     
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  4. igzekyativ

    igzekyativ Well-Known Member
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    yes
     
  5. igzekyativ

    igzekyativ Well-Known Member
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    man i feel dumb.. so simple..
     
  6. 13x + 20x = 100 where x = number of hours

    33x = 100

    x = 100/33

    x = 3.030303.....
     
  7. Damn....beat me to it.
     
  8. Barats

    Barats Well-Known Member
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    Jun 7, 2010
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    I'm failing to see how this relates to the Evo. Lol.
     
  9. igzekyativ

    igzekyativ Well-Known Member
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    it does not, hence the title, but i like the people here and i know they would help me out..
     
  10. 81_

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    Jul 6, 2010
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    if a train leaves ny at 1pm and a train leaves KC at 12pm, who will get to froyo first
     
  11. igzekyativ

    igzekyativ Well-Known Member
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    technically the guy in NY.. tomorrow hits first in NY since they are an hour ahead of Kansas City :p
     
  12. F14Scott

    F14Scott Active Member
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    Jun 25, 2010
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    There are no stupid questions, only stupid people...
    :D :D :D

    Glad to help!
     
  13. 81_

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    no, there are stupid questions.
     
  14. CriticalCritic

    CriticalCritic Well-Known Member
    213

    Nov 9, 2009
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    Cary, NC
    Like what?









    ^ Like that ^
    :D
     
  15. geaux4it

    geaux4it Member
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    Apr 27, 2010
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    Me.
     
  16. dan330

    dan330 Well-Known Member
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    Jan 22, 2010
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    what he said!! :rolleyes:
     
  17. SB13X

    SB13X Well-Known Member
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    Jun 24, 2010
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    Rail Consultant
    Wigan, UK
    Algebra and what your doing wrong? Getting involved with it in the first place would be my response. So glad I passed on doing calculus at school. lol
     

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