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twitch

  • 3 years ago

need help!!! Medalss!!!

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  1. twitch
    • 3 years ago
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    simplify -1/5 - 2/3

  2. kugler97
    • 3 years ago
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    all you would do is get a caculator and type in -1/5 - 2/3 and you will get your answer..

  3. twitch
    • 3 years ago
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    alrite hang on tell me if you get the same thing

  4. kugler97
    • 3 years ago
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    okkayy.. lol

  5. twitch
    • 3 years ago
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    -0.86666666666666666666666666666667

  6. twitch
    • 3 years ago
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    lol

  7. twitch
    • 3 years ago
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    did you get the same thing

  8. kugler97
    • 3 years ago
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    yes i did.. lol

  9. twitch
    • 3 years ago
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    but I dont thinks thats right

  10. kugler97
    • 3 years ago
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    It is -0.86 you take the rest of the numbers off.. lol

  11. twitch
    • 3 years ago
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    oh how would I put that in a fraction tho :)

  12. kugler97
    • 3 years ago
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    you would take -0.86 and divide that by 100 and then tell me what you get ?!

  13. twitch
    • 3 years ago
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    0.0086

  14. kugler97
    • 3 years ago
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    i just did it and i got 0.0086

  15. twitch
    • 3 years ago
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    so when does it become a fraction

  16. kugler97
    • 3 years ago
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    then take that and put 86 over 100 and that's your answer (:

  17. kugler97
    • 3 years ago
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    is it right?

  18. twitch
    • 3 years ago
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    umm idk because my cousin got \[-\frac{ 13 }{ 15 }\]

  19. kugler97
    • 3 years ago
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    hmmmm... not sure then sorry

  20. twitch
    • 3 years ago
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    its okay thnx for trying

  21. kugler97
    • 3 years ago
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    your welcome (:

  22. twitch
    • 3 years ago
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    wbu tomo do you know how to do this problem

  23. Twis7ed
    • 3 years ago
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    Find the greatest common denominator and simplify

  24. tomo
    • 3 years ago
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    -1/5 - 2/3 multiply the first term by 3/3. you need a common denominator to add or subtract fractions. in this case the least common denominator is 15 (-1/5)*(3/3) = -3/15 multiply the second term by 5/5 (2/3)*(5/5) = 10/15 \[\frac{-3}{15}-\frac{10}{15} = \frac{-3-10}{15} = \frac{-13}{15}\]

  25. twitch
    • 3 years ago
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    alright hb \[\frac{ 8k-12h }{ 4 }\]

  26. tomo
    • 3 years ago
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    pull out a 4 out of the numerator.

  27. twitch
    • 3 years ago
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    -4kh

  28. tomo
    • 3 years ago
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    ??

  29. twitch
    • 3 years ago
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    8-12 is - 4?

  30. twitch
    • 3 years ago
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    oh nvm its 2k-3h

  31. tomo
    • 3 years ago
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    good catch.

  32. twitch
    • 3 years ago
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    duuhh immma dork sometimes

  33. tomo
    • 3 years ago
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    now you have \[\frac{4*(2k-3h)}{4} = \frac{4}{4}*(2k-3h) = ?\]

  34. twitch
    • 3 years ago
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    1kh

  35. tomo
    • 3 years ago
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    k and h are not multiplied they are being subtracted so you have (4/4)(2k-3h) 1*(2k-3h) (2k-3h) you cannot simplify further 2k-3h does not equal 1kh suppose you have k = 2, h = 3 2k-3h = 2*2-3*3 = 4-9 = -5 1kh = 1*2*3 = 6 // clearly not -5

  36. twitch
    • 3 years ago
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    okay I have no idea how to solve this one "a bowl contains 4 red chips, 3 blue chips, and 9 green chips. your choose one a random" Find P (not red) now how would I solve this?

  37. tomo
    • 3 years ago
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    P(not x) = 1-P(x)

  38. twitch
    • 3 years ago
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    wait how did you figure that

  39. tomo
    • 3 years ago
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    you have a total probability of 1. therefore the P(x) is something then the probability of not x is 1 minus the probability of that something.

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