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anonymous

  • one year ago

plz i need help :( which expression completes this equation? 36/4-2*3=? A.[18-(10-6)]+1 B.{(8-6)*3}/2 C.36-2*3 D.3*6-4/2

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  1. iwillrektyou
    • one year ago
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    Do you know the order of operations?

  2. iwillrektyou
    • one year ago
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    PEMDAS - Parentheses, exponent, multiplication, division, addition, subtraction.

  3. anonymous
    • one year ago
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    yes

  4. iwillrektyou
    • one year ago
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    Ok, so use the order of operations to solve the equation. First, you do multiplication: -2*3

  5. anonymous
    • one year ago
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    -6

  6. iwillrektyou
    • one year ago
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    Good.

  7. iwillrektyou
    • one year ago
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    Next, do division: 36/4

  8. anonymous
    • one year ago
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    9

  9. iwillrektyou
    • one year ago
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    Wait, is this asking for you to find an equivalent equation to that? Because, that can also be done. The solved answer just isn't there, so apparently we have to find an equivalent expression to that.

  10. anonymous
    • one year ago
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    ?

  11. iwillrektyou
    • one year ago
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    So, I am guessing that we have to find an equation that equals to the given, with PEMDAS

  12. anonymous
    • one year ago
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    i guess so

  13. iwillrektyou
    • one year ago
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    It would not be a, because it is [18 - 4] + 1. For b, it is {(8-6)*3}/2. Which is [2*3]/2. 6/3 = ?

  14. anonymous
    • one year ago
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    so it's b?

  15. iwillrektyou
    • one year ago
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    Yes, but let's check the other 2 first. C.36-2*3 --> 36 - 3 = 30. D.3*6-4/2 --> 18 - 2 --> 16

  16. iwillrektyou
    • one year ago
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    So yes, it is b.

  17. anonymous
    • one year ago
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    thx

  18. iwillrektyou
    • one year ago
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    Any time.

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