SOLUTION: I believe the answer is 208 but I want to check... Find the sum of the first 10 terms of the series: 6.4, 3.2, 1.6, ...

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Question 87312: I believe the answer is 208 but I want to check...
Find the sum of the first 10 terms of the series: 6.4, 3.2, 1.6, ...

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Find the sum of the first 10 terms of the series: 6.4, 3.2, 1.6, ...
this is a geometric sequence. r is the common ratio between each number. a%5B1%5D is the 1st number of the sequence.
r=3.2/6=1/2

6.4%2A%28%281023%2F1024%29%2A2%29=13094.4%2F1024=12.7875
Ed