Question

64, 16, 4, 1, whats the common ratio?

Answer 1

use the same method described to you by @Outkast3r09 in your earlier question: http://openstudy.com/updates/4fe52d86e4b06e92b87389c1

Answer 2

If you're still stuck, take any term (but the first one) and divide it by the previous term. This will give you the common ratio.

Answer 3

so 4?

Answer 4

you're dividing the wrong way

Answer 5

ohhh so it's 1/4? but is it negative or positive?

Answer 6

it's positive since 4/16 = 1/4 or 16/64 = 1/4

Answer 7

you can also see this because the signs don't change from term to term

Answer 8

okay can you help me with this one?
What is the next term of the following sequence?
12, 6, 3, ...
is it going to be 0?

Answer 9

What are you doing to 12 to get to 6?

Answer 10

subtracting 6

Answer 11

what about jumping from 6 to 3?

Answer 12

ohhh okayyy its going to be 1 and 1/2 right?

Answer 13

you got it

Answer 14

or 3/2

Answer 15

okayy one more question,
What is the next term of the following sequence?
12, 6, 3, ...

Answer 16

you just asked that

Answer 17

is it 405?