SOLUTION: there are three arithmetic means between a and b in an arithmetic sequence . the average of the arithmetic means is 6 . what is the average of a and b

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Question 1039016: there are three arithmetic means between a and b in an arithmetic sequence . the average of the arithmetic means is 6 . what is the average of a and b
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Let the arithmetic sequence be a,x,y,z,b. The common difference would then be %28b-a%29%2F4 (since there are four spaces between the numbers.)
Hence x+=+a%2B%28b-a%29%2F4,
y+=+a%2B+2%2A%28b-a%29%2F4, and
z+=+a%2B+3%2A%28b-a%29%2F4.
==>
Therefore the average of a and b is 6.