Determine if the sequence could be geometric. If so, give the common ratio.
10, 15, 22.5, 33.75, 50.625, ...

Question

Determine if the sequence could be geometric. If so, give the common ratio.
10, 15, 22.5, 33.75, 50.625, ...

anonymous · Answer

All you need to do if you want to know if it's geometric is place the second term over the first term (15/10), then the third term over the second term (22.5/15). If, when simplified, these two are equal, then it is a geometric sequence and whatever number both of them simplified to is the ratio. Does this make sense?

anonymous · Answer

Not really:(

anonymous · Answer

Place the second term over the first term. What do you get?