SOLUTION: number sequences start with 3 and multiply by 3 each time, How do you find the 20th term there must be an easy way without having to count all the way up.

SOLUTION: number sequences start with 3 and multiply by 3 each time, How do you find the 20th term there must be an easy way without having to count all the way up.

Algebra.Com

Question 222061: number sequences
start with 3 and multiply by 3 each time, How do you find the 20th term there must be an easy way without having to count all the way up.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

For a geometric series with an initial value of

and a common ratio of

(

), the sum of the first

terms is given by:

Just plug in

,

, and

and do your arithmetic.

John

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