Find the common ratio, r, in the following geometric sequence. 27, 9, 3, 1,…

Mathematics

2 answers:

Rom4ik [11]3 years ago

7 0

The common ratio is 1/3
27/3 = 9
9/3 =3
3/3=1

Shtirlitz [24]3 years ago

3 0

To find the common ratio
divide by the previous numb/number beside it:
$\frac{9}{27}=\frac{1}{3},\:\quad \frac{3}{9}=\frac{1}{3},\:\quad \frac{1}{3}=\frac{1}{3}$

so $r=\frac{1}{3}$

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