SOLUTION: A woman made $20,000 during the first year of her new job at city hall. Each year she received a 10% raise. Find her total earnings during the first seven years on the job.

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Question 1025239: A woman made $20,000 during the first year of her new job at city hall. Each year she received a 10% raise. Find her total earnings during the first seven years on the job.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Look for the sum of a geometric series,
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S%5Bn%5D=20000%281%2B10%2F100%29%5En for n=0 to n=6
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T=20000%28%281-1.1%5E7%29%2F%281-1.1%29%29
T=189743.40