CD Sales The total weekly sales for a newly released rock CD increased each week. At the
Chapter 7, Problem 66(choose chapter or problem)
CD Sales The total weekly sales for a newly released rock CD increased each week. At the same time, the total weekly sales for a newly released rap CD decreased each week. Models that approximate the total weekly sales (in thousands of units) for each CD are where represents the number of weeks each CD was in stores, with corresponding to the CD sales on the day each CD was first released in stores. (a) After how many weeks will the sales for the two CDs be equal? (b) Use a table to solve the system of equations numerically. Compare your result with that of part (a).
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