Asked by Bob

Over a 5 week period, the price of an MP3 player dropped steadily, from $140 to $90.

What was the average weekly change in the price of the MP3 player over this period?

Answers

Answered by Alex
That the price "dropped steadily" implies a linear relationship, which would simply be change in price over change in time.

(140 - 90) / 5 = -$10 / week.
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