Asked by sheri
must be answered with a series/sequences formula
over the past 10 years, the number of CD's sold by a mail order music company has increased an average of 12% per year. If the company sold 1.5 million CD's ten years ago, the total number of sales they have made over all ten years is...?
over the past 10 years, the number of CD's sold by a mail order music company has increased an average of 12% per year. If the company sold 1.5 million CD's ten years ago, the total number of sales they have made over all ten years is...?
Answers
Answered by
tchrwill
The accumulation of sales over the 10 year period derives from the geometric progression with first term of a = 1,5500,000, the the yearly increase of 12%, or common factor of r = 1.12 and the period of interest, namely n = 10 years.
The sum of the 10 yearly sales is then S = a(r^n - 1)/(r-1) or
S = 1,500,000(1.12^10 - 1)/(1.12 - 1).
I'll let you punch out the numbers.
The sum of the 10 yearly sales is then S = a(r^n - 1)/(r-1) or
S = 1,500,000(1.12^10 - 1)/(1.12 - 1).
I'll let you punch out the numbers.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.