The formula for an infinite geometric sequence is the following:

Just substitute the values of

and r into the formula.



Therefore, the answer is 20.
15=7x+1-5x
Put like terms together. ( group anything alike)
15+1=16
7x-5x=2x
16 2x
—- ——-
2x 2x
2x/2x cancels itself out.
16 divided by 2 is 8
x=8
I hope this helped!
Answer:
5 mins
Step-by-step explanation:
680/4
=170 meters (quarter of 680m)
170/34
=5 mins
Answer:
i think they're equal?
Step-by-step explanation: