anonymous
  • anonymous
Evaluate 32 + (7 − 2) ⋅ 4 − 6 over 3. 24 54 27 28
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@misssunshinexxoxo
chrisplusian
  • chrisplusian
Order of operations... what do you start with?
chrisplusian
  • chrisplusian
Parentheses so.... 7-2 =5

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More answers

anonymous
  • anonymous
32+5
chrisplusian
  • chrisplusian
Then you have 32+5*6*4-6 over 3
chrisplusian
  • chrisplusian
You can look at the numerator as being in parentheses and then divided by the bottom
anonymous
  • anonymous
37 24
chrisplusian
  • chrisplusian
Next you have to follow from left to right in the numerator... so you do multiplication first. Multiplying 5*6 you get 30
anonymous
  • anonymous
30*4=120
chrisplusian
  • chrisplusian
Then multiplying 30 by 4 you get 120
anonymous
  • anonymous
2
chrisplusian
  • chrisplusian
Then you do addition left to right
anonymous
  • anonymous
what do you mean
anonymous
  • anonymous
i suck at math really bad
chrisplusian
  • chrisplusian
Ok for clarification....
anonymous
  • anonymous
ok
anonymous
  • anonymous
what number would we do left to right?
chrisplusian
  • chrisplusian
\[\frac{ 32+(7-2)*4-6 }{ 3 }\]
chrisplusian
  • chrisplusian
Is that your problem?
anonymous
  • anonymous
yes
chrisplusian
  • chrisplusian
I made a mistake when I started cause I added something that didn;t belong there I aplologize
anonymous
  • anonymous
thats fine :)
chrisplusian
  • chrisplusian
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?
anonymous
  • anonymous
ok heres my problem
anonymous
  • anonymous
|dw:1443061261463:dw|
chrisplusian
  • chrisplusian
OK thats different... lets start it then
anonymous
  • anonymous
ok
anonymous
  • anonymous
thanks for sticking around
chrisplusian
  • chrisplusian
first is parentheses...\[3^2 + (5)*4 -\frac{ 6 }{ 3 } \]
anonymous
  • anonymous
20
chrisplusian
  • chrisplusian
Next exponents....\[9 + 5*4-\frac{ 6 }{ 3 }\]
anonymous
  • anonymous
29
chrisplusian
  • chrisplusian
Then multiplication...\[9+20-\frac{ 6 }{ 3 }\]
anonymous
  • anonymous
how do you multiply from a fraction?
chrisplusian
  • chrisplusian
Then addition left to right....\[29-\frac{ 6 }{ 3 }\]
anonymous
  • anonymous
27?
chrisplusian
  • chrisplusian
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...\[\frac{ 3 }{ 3 }*29 - \frac{ 6 }{ 3 } = \frac{ 87 }{ 3 }-\frac{ 6 }{ 3 }\]
chrisplusian
  • chrisplusian
\[ \frac{ 87 }{ 3 }-\frac{ 6 }{ 3 } = \frac{ 87-6 }{ 3 }\]
anonymous
  • anonymous
that would be 28
chrisplusian
  • chrisplusian
\[=\frac{ 81 }{ 3 }=27\]
chrisplusian
  • chrisplusian
Sorry long winded but if you have to look back I want you to understand where it all came from
anonymous
  • anonymous
i had it right the first time lol. yes i most definitely will go back and look.
anonymous
  • anonymous
You're a awesome at exemplifying thank you so much!
chrisplusian
  • chrisplusian
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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