## XxMuslimxX one year ago Find the average for the following numbers: A) 12 11 1/2 11 2/8 B) 11 7 9 C) 12 13 10

1. 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

2. XxMuslimxX

I know. But A is confusing for me...

3. calculusxy

$\large \frac{ 12 + 11 \frac{ 4 }{ 8 } 11 \frac{ 2 }{ 8 } }{ 3 }$

4. calculusxy

notice how i changed 11 1/2 to 11 4/8

5. XxMuslimxX

34 6/8

6. calculusxy

no 34 3/4

7. calculusxy

$\frac{ 6 \div 2 }{ 8 \div 2 } = \frac{ 3 }{ 4 }$

8. XxMuslimxX

Oh yeah. My bad. I got carried away.

9. XxMuslimxX

The next step would be dividing that by 3.

10. calculusxy

yes

11. XxMuslimxX

That's where I got stuck...

12. XxMuslimxX

|dw:1443036449032:dw|

13. XxMuslimxX

@calculusxy

14. anonymous

Tip: $$\huge \frac{ 3 }{ 4 }$$ can also be written as $$\huge 0.75$$.

15. anonymous

|dw:1443036672177:dw|

16. XxMuslimxX

Yeah...I know, but I do not see how that can help?

17. anonymous

Oh really? You don't know how to do this? Okay... |dw:1443036762728:dw|

18. XxMuslimxX

Humiliating me doesn't help either.

19. XxMuslimxX

OK. I did some calculations and got 12 1/2....can someone check if it correct for me...?

20. anonymous

No one's humiliating you. :)

21. XxMuslimxX

"Oh really? You don't know how to do this?"

22. XxMuslimxX

For C I got 11 67⁄100....is that correct?

23. anonymous

Oh, was I being rude? Lol I didn't know that. :D Btw, your answer in A is not correct.