SOLUTION: P,6 and r are three consecutive terms of a linear sequence. if r is twice the value of p,find the value of p and r

Algebra ->  Sequences-and-series -> SOLUTION: P,6 and r are three consecutive terms of a linear sequence. if r is twice the value of p,find the value of p and r      Log On


   

Question 880398: P,6 and r are three consecutive terms of a linear sequence.
if r is twice the value of p,find the value of p and r
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p,6,2p
a[3] = p + (n-1)d
a[3] = p + 2d = 2p, d+=+p%2F2
p + p/2 = 6, 2p + p = 12, p+=+4
{4,6,8) d = 2