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anonymous

  • one year ago

How can 33 over 9 be expressed as a decimal? 2.3 with bar over 3 3.6 with bar over 6 4.3 with bar over 3 4.6 with bar over 6

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  1. ♪Chibiterasu
    • one year ago
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    Divide 33 by 9.

  2. anonymous
    • one year ago
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    i get 3.666667

  3. ♪Chibiterasu
    • one year ago
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    Yeah.

  4. ♪Chibiterasu
    • one year ago
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    When a bar is over a number in a decimal that means it repeats.

  5. anonymous
    • one year ago
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    so b?

  6. anonymous
    • one year ago
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    yeah

  7. ♪Chibiterasu
    • one year ago
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    |dw:1442868157605:dw| yes

  8. anonymous
    • one year ago
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    ok i have more :)

  9. anonymous
    • one year ago
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    Simplify negative 9 over 6 divided by 3 over negative 2.. 3 1 −1 −3

  10. anonymous
    • one year ago
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    b?

  11. ♪Chibiterasu
    • one year ago
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    \[\frac{9}{6 \div \frac{3}{2}}\]

  12. ♪Chibiterasu
    • one year ago
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    That?

  13. anonymous
    • one year ago
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    no this..

  14. anonymous
    • one year ago
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    \[\frac{ -9 }{ 6 } \div \frac{ 3 }{ -2 }\]

  15. ♪Chibiterasu
    • one year ago
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    Ok well dividing by a fraction is the same as multiplying by its reciprocal.

  16. ♪Chibiterasu
    • one year ago
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    The reciprocal is just the fraction up-side down.

  17. ♪Chibiterasu
    • one year ago
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    \[\frac{-9}{6} \times \frac{-2}{3}\]

  18. ♪Chibiterasu
    • one year ago
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    This is the exact same thing.

  19. anonymous
    • one year ago
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    right and then when i solve it i get 18/ 18 which equals 1 :)

  20. ♪Chibiterasu
    • one year ago
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    Yeah.

  21. anonymous
    • one year ago
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    okay next!

  22. anonymous
    • one year ago
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    Which of the following numbers can be expressed as repeating decimals? 3 over 7, 2 over 5, 3 over 4, 2 over 9 2 over 9 and 3 over 4 3 over 7 and 2 over 5 2 over 5 and 3 over 4 3 over 7 and 2 over 9

  23. ♪Chibiterasu
    • one year ago
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    3/7 2/5 3/4 2/9 Right off the bat we can remove 3/4 because it is common to know this this is 0.75

  24. ♪Chibiterasu
    • one year ago
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    It is also known that x/5 is just .2, .4, .6 etc so thats also out.

  25. anonymous
    • one year ago
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    ok

  26. ♪Chibiterasu
    • one year ago
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    And when you divide the rest.

  27. ♪Chibiterasu
    • one year ago
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    3/7 is pretty whacky but it repeats and so does 2/9 so yeah.

  28. anonymous
    • one year ago
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    so d?

  29. ♪Chibiterasu
    • one year ago
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    Yeah. When you come across something like this you just divide all the fractions and it becomes pretty obvious. :)

  30. anonymous
    • one year ago
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    ok :)

  31. anonymous
    • one year ago
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    Simplify (−3.5)(−3)(−6.4). −672 −67.2 67.2 672

  32. anonymous
    • one year ago
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    c?

  33. ♪Chibiterasu
    • one year ago
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    Sorry was afk

  34. ♪Chibiterasu
    • one year ago
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    Nope, the result will be negative

  35. ♪Chibiterasu
    • one year ago
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    -1 * -1 = 1 1 * -1 = -1

  36. anonymous
    • one year ago
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    how

  37. anonymous
    • one year ago
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    @♪Chibiterasu

  38. anonymous
    • one year ago
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    they are all negative which equals positive

  39. anonymous
    • one year ago
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    @♪Chibiterasu

  40. ♪Chibiterasu
    • one year ago
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    No

  41. ♪Chibiterasu
    • one year ago
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    -0 * -0 = 0 ----> 0 * -0 = -0

  42. ♪Chibiterasu
    • one year ago
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    See?

  43. anonymous
    • one year ago
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    oh i get it.. so b?

  44. ♪Chibiterasu
    • one year ago
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    yeah

  45. anonymous
    • one year ago
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    ok next!

  46. anonymous
    • one year ago
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    Hillary jogged a total distance of 7 and 1 over 3 miles during the months of October and November. If Hillary only jogged 1 over 6 mile every day, which expression shows the number of days in which she went jogging? 7 and 1 over 3 multiplied by 1 over 6 7 and 1 over 3 plus 1 over 6 7 and 1 over 3 minus 1 over 6 7 and 1 over 3 divided by 1 over 6

  47. ♪Chibiterasu
    • one year ago
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    That would involve division to find how long she did it

  48. anonymous
    • one year ago
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    d?

  49. ♪Chibiterasu
    • one year ago
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    yeah

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