Can someone give me an example in averages so i can try to solve it?

Question

anonymous · Answer

Today, meverett04 was awarded 567 medals, FoolForMath 501, TuringTest 398 and fewscrewsmissing 6. What was the average of medals awarded amongst these people?

anonymous · Answer

find the average:

4, 7, 7, 2

Add them up

4 +7 +7+2 = 20

Divide by the number of numbers, that is 4

20/4 = 5

5 is the answer.  You try one

-1, 0, 2, 5, 4

anonymous · Answer

567+501+398+6=1472
1472/4=368 was the average of how many medals that were handed out today.

anonymous · Answer

Nice!

anonymous · Answer

Very good =)
If the average is 70, find the missing number:
19, 112, 94, ?

anonymous · Answer

No luck?

anonymous · Answer

Oh, im sorry, iwas in theshower

anonymous · Answer

Ill give it a try

anonymous · Answer

19+112+94+x
-------------  = 70, right?
           4

anonymous · Answer

Yus! High fives all around.

anonymous · Answer

But wait, im not done yet.

anonymous · Answer

70*4=280

19+112+94=225

280-225=55!  55=the missing number for the equation to become

19+112+94+55
-------------  = 70
            4

anonymous · Answer

Oh right. Haha sorry, I looked at what you said before and saw it immediately so took it to be solved, forgot we were trying to work it out... But NOW high fives all round! It is indeed 55.

anonymous · Answer

YES!!!!!

anonymous · Answer

Gold star.

anonymous · Answer

Thanks :)