XxMuslimxX
  • XxMuslimxX
Find the average for the following numbers: A) 12 11 1/2 11 2/8 B) 11 7 9 C) 12 13 10
Mathematics
chestercat
  • chestercat
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calculusxy
  • calculusxy
finding the average is basically adding up all of the numbers and then dividing it by how many numbers there were on the data set. e.g. find the average of 10, 20, 30 \[\large \frac{ 10 + 20 + 30 }{ 3 } =\frac{ 60 }{ 3 } = 20\] so 20 is the average from this example data set
XxMuslimxX
  • XxMuslimxX
I know. But A is confusing for me...
calculusxy
  • calculusxy
\[\large \frac{ 12 + 11 \frac{ 4 }{ 8 } 11 \frac{ 2 }{ 8 } }{ 3 }\]

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calculusxy
  • calculusxy
notice how i changed 11 1/2 to 11 4/8
XxMuslimxX
  • XxMuslimxX
34 6/8
calculusxy
  • calculusxy
no 34 3/4
calculusxy
  • calculusxy
\[\frac{ 6 \div 2 }{ 8 \div 2 } = \frac{ 3 }{ 4 }\]
XxMuslimxX
  • XxMuslimxX
Oh yeah. My bad. I got carried away.
XxMuslimxX
  • XxMuslimxX
The next step would be dividing that by 3.
calculusxy
  • calculusxy
yes
XxMuslimxX
  • XxMuslimxX
That's where I got stuck...
XxMuslimxX
  • XxMuslimxX
|dw:1443036449032:dw|
XxMuslimxX
  • XxMuslimxX
anonymous
  • anonymous
Tip: \(\huge \frac{ 3 }{ 4 }\) can also be written as \(\huge 0.75\).
anonymous
  • anonymous
|dw:1443036672177:dw|
XxMuslimxX
  • XxMuslimxX
Yeah...I know, but I do not see how that can help?
anonymous
  • anonymous
Oh really? You don't know how to do this? Okay... |dw:1443036762728:dw|
XxMuslimxX
  • XxMuslimxX
Humiliating me doesn't help either.
XxMuslimxX
  • XxMuslimxX
OK. I did some calculations and got 12 1/2....can someone check if it correct for me...?
anonymous
  • anonymous
No one's humiliating you. :)
XxMuslimxX
  • XxMuslimxX
"Oh really? You don't know how to do this?"
XxMuslimxX
  • XxMuslimxX
For C I got 11 67⁄100....is that correct?
anonymous
  • anonymous
Oh, was I being rude? Lol I didn't know that. :D Btw, your answer in A is not correct.

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