SOLUTION: The mean of 1,2,x,11,y,14 is 8 and the median is 9

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Question 1150778: The mean of 1,2,x,11,y,14 is 8 and the median is 9

Answer by greenestamps(13200) About Me  (Show Source):
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The mean of 1,2,x,11,y,14 is 8...

"mean" means average:

%281%2B2%2Bx%2B11%2By%2B14%29%2F6+=+8
%2828%2Bx%2By%29%2F6+=+8
28%2Bx%2By+=+48
x%2By+=+20 [1]

... and the median is 9

The median is "the one in the middle". With 6 numbers, the median is the average of the 3rd and 4th:
%28x%2B11%29%2F2+=+9
x%2B11+=+18 [2]

Solve the pair of equations [1] and [2] using basic algebra....