SOLUTION: if a geometric sequence is 80, -40 , 20 . what are the next three terms ?

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Question 585632: if a geometric sequence is 80, -40 , 20 . what are the next three terms ?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
You're dividing by -2 each time. So the next three terms are

20/(-2) = -10

-10/(-2) = 5

5/(-2) = -2.5
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