SOLUTION: Over a 3 week period, the price of an MP3 player dropped steadily, from $126 to $90.
What signed number represents the average weekly change in the price of the MP3 player over
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Question 978232: Over a 3 week period, the price of an MP3 player dropped steadily, from $126 to $90.
What signed number represents the average weekly change in the price of the MP3 player over this period?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Change in price: 90 - 126 = -36
Notice how the result is negative
Change in weeks = 3
-------------------------------------------------------
Average weekly change = (change in price)/(change in weeks)
Average weekly change = (-36)/(3)
Average weekly change = -12
So that means the MP3 player dropped in price by $12 each week.
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