SOLUTION: find the arithmetic mean and fill in the blanks. 32,__,__,__,68,...

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Question 925521: find the arithmetic mean and fill in the blanks.
32,__,__,__,68,...
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
32,__,__,__,68,... =
a1,a2,a3,a4,a5,... =

       [Use an = a1+(n-1)d]

a1,a1+d,a1+2d,a1+3d,a1+4d,... =

32,32+d,32+2d,32+3d,32+4d,...

                    32+4d = 68
                       4d = 36
                        d = 9

32,32+9,32+2(9),32+3(9),32+4(9),...

32,32+9,32+18,32+27,32+36,...

32,41,50,59,68,...

Edwin
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