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

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) (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 (since there are four spaces between the numbers.)
Hence ,
, and
.
==>
Therefore the average of a and b is 6.
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