Does .999 = 1??

Discussion in 'Activities' started by HiJiNXeD, Mar 1, 2014.

  1. Is .999 equal to 1??

    The first person to explain correctly will get a 1b dv

    Please show all work
     
    #1 HiJiNXeD, Mar 1, 2014
  2. I made a mistake it's .99 not .999
     
    #2 HiJiNXeD, Mar 1, 2014
  3. No it does not. 1-0.99=0.01 there's some left over. Unless you round it, it's still not 1.
     
    #3 Eglantine, Mar 5, 2014
  4. Sorry not correct answer
     
    #4 HiJiNXeD, Mar 5, 2014
  5. Let n = .99 so 10n = 9.99

    Subtracting the first equation from the second yields:

    9n = 9 since the repeating decimals subtract out
    _
    which gives us n = 1, but we know that n = .99 so
    _
    .99 = 1
     
    #5 Natalee_Momma, Mar 7, 2014
  6. That seems wrong but that's how it is solved  that close so you win
     
    #6 HiJiNXeD, Mar 7, 2014
  7. It's rounded, so yes.
     
    #7 itsMetroGnome, Mar 8, 2014
  8. How is 10 X .99 = 9.99?
    10 x .99 = 9.9 not 9.99
    So n will equal .891

    Heres the correct answer:
    First take the square root of i.
    Then multiply it by n. So ni.
    Then multiply ni by .99
    If A = b and b*c*a is same as b*a*c, then you have ti multiply 1 by .99ni

    So you get .99ni

    Now set that equation equal to 0. And for n you get 0. Then apply ut as a function to find 1 as y.
    So .99ni = 1
    First you multiply .99 by i and you have
    -.99n =I

    Then you divide both sides by -.99
    you get n=i/.99

    now apply that to equation .99i/99=I

    Take derivative of both sides you get:

    -2= i/.99
    Multiply by .99 squard and find when x limit to 0 and find the y when n is equal to the derivaticlve of the slope.
    You get x = 1 qnd y = 1.
    So when .99n = y,
    .99 = 1 at x = 1
     
    #8 NiteDIX, Mar 9, 2014
  9.  You took way to much thought on this ^^^
     
    #9 HiJiNXeD, Mar 10, 2014
  10. 1b ? not worth it
     
    #10 -Just_A_Noob-2, Sep 24, 2017
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