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anonymous

  • one year ago

Evaluate 32 + (7 − 2) ⋅ 4 − 6 over 3. 24 54 27 28

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  1. anonymous
    • one year ago
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    @misssunshinexxoxo

  2. chrisplusian
    • one year ago
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    Order of operations... what do you start with?

  3. chrisplusian
    • one year ago
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    Parentheses so.... 7-2 =5

  4. anonymous
    • one year ago
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    32+5

  5. chrisplusian
    • one year ago
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    Then you have 32+5*6*4-6 over 3

  6. chrisplusian
    • one year ago
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    You can look at the numerator as being in parentheses and then divided by the bottom

  7. anonymous
    • one year ago
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    37 24

  8. chrisplusian
    • one year ago
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    Next you have to follow from left to right in the numerator... so you do multiplication first. Multiplying 5*6 you get 30

  9. anonymous
    • one year ago
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    30*4=120

  10. chrisplusian
    • one year ago
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    Then multiplying 30 by 4 you get 120

  11. anonymous
    • one year ago
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    2

  12. chrisplusian
    • one year ago
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    Then you do addition left to right

  13. anonymous
    • one year ago
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    what do you mean

  14. anonymous
    • one year ago
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    i suck at math really bad

  15. chrisplusian
    • one year ago
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    Ok for clarification....

  16. anonymous
    • one year ago
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    ok

  17. anonymous
    • one year ago
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    what number would we do left to right?

  18. chrisplusian
    • one year ago
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    \[\frac{ 32+(7-2)*4-6 }{ 3 }\]

  19. chrisplusian
    • one year ago
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    Is that your problem?

  20. anonymous
    • one year ago
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    yes

  21. chrisplusian
    • one year ago
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    I made a mistake when I started cause I added something that didn;t belong there I aplologize

  22. anonymous
    • one year ago
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    thats fine :)

  23. chrisplusian
    • one year ago
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    But if the problem I just posted is correct you don't have the answer listed because it would be a decimal. Can you check to be sure that what I posted is actually your problem?

  24. anonymous
    • one year ago
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    ok heres my problem

  25. anonymous
    • one year ago
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    |dw:1443061261463:dw|

  26. chrisplusian
    • one year ago
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    OK thats different... lets start it then

  27. anonymous
    • one year ago
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    ok

  28. anonymous
    • one year ago
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    thanks for sticking around

  29. chrisplusian
    • one year ago
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    first is parentheses...\[3^2 + (5)*4 -\frac{ 6 }{ 3 } \]

  30. anonymous
    • one year ago
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    20

  31. chrisplusian
    • one year ago
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    Next exponents....\[9 + 5*4-\frac{ 6 }{ 3 }\]

  32. anonymous
    • one year ago
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    29

  33. chrisplusian
    • one year ago
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    Then multiplication...\[9+20-\frac{ 6 }{ 3 }\]

  34. anonymous
    • one year ago
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    how do you multiply from a fraction?

  35. chrisplusian
    • one year ago
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    Then addition left to right....\[29-\frac{ 6 }{ 3 }\]

  36. anonymous
    • one year ago
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    27?

  37. chrisplusian
    • one year ago
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    last we need to subtract, but our first number is not a fraction..... how do we change it? To add or subtract fractions we must have a common denominator.... in this case that denominator is 3..... we can multiply the first number 29 by \[\frac{ 3 }{ 3 }\] because this is just the number one. Multiplying by one does not change the value of the number but it does change what it looks like...\[\frac{ 3 }{ 3 }*29 - \frac{ 6 }{ 3 } = \frac{ 87 }{ 3 }-\frac{ 6 }{ 3 }\]

  38. chrisplusian
    • one year ago
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    \[ \frac{ 87 }{ 3 }-\frac{ 6 }{ 3 } = \frac{ 87-6 }{ 3 }\]

  39. anonymous
    • one year ago
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    that would be 28

  40. chrisplusian
    • one year ago
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    \[=\frac{ 81 }{ 3 }=27\]

  41. chrisplusian
    • one year ago
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    Sorry long winded but if you have to look back I want you to understand where it all came from

  42. anonymous
    • one year ago
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    i had it right the first time lol. yes i most definitely will go back and look.

  43. anonymous
    • one year ago
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    You're a awesome at exemplifying thank you so much!

  44. chrisplusian
    • one year ago
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    Its really a matter of looking at the whole problem and deciding what takes precedence.... parentheses, then if there aren't any whats next... exponents... then multiplication or division (whichever comes first left to right meaning multiplication doesn't come before division unless it shows up first left to right), then addition or subtraction (whichever comes first left to right). and your done :) good luck

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