SOLUTION: If the average arithmetic mean of 8, 12, 15, 21, x and 11 is 17 then what is x?

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Question 5408: If the average arithmetic mean of 8, 12, 15, 21, x and 11 is 17 then what is x?


Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
(8 + 12 + 15 + 21 + x + 11)/ 6 = 17
(67+x)/6 = 17
67+x = 102
x = 102-67
x = 35

jon.