Posted by **liz** on Tuesday, March 31, 2009 at 5:11pm.

find the common ratio of each sequence:

1. 8,20,50,125......?

2. 0.48,0.9,1.8,3.6.....?

- algebra 1 -
**Reiny**, Tuesday, March 31, 2009 at 5:20pm
to find the common ration, divide any term by the term before it.

e.g. r = 50/20 = ....

let me know what you come up with for both of your questions.

- algebra 1 -
**Gabriela**, Thursday, May 22, 2014 at 7:30pm
The ratio of the first sequence is 2.5 so the recursive formula is going to be an= 2.5(an-1)

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