Michael is 3 times as old as Brandon. 18 years ago, Michael was 9 times as old as Brandon.
1 answer:
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Answer:
(1)
(2)
If we divide equations (2) and (1) we got:
And then
And then we can find the value and we got from equation (1)
And then the general term for the sequence would be given by:
And the best option would be:
C) a1=759,375; an=an−1⋅(1/15)
Step-by-step explanation:
the general formula for a geometric sequence is given by:
For this case we know that
Then we have the following conditions:
(1)
(2)
If we divide equations (2) and (1) we got:
And then
And then we can find the value and we got from equation (1)
And then the general term for the sequence would be given by:
And the best option would be:
C) a1=759,375; an=an−1⋅(1/15)