the average price of a certain brand television dropped from $3000 in january to $2400 in sept. find the rate of change in the average of the televison. pleez help show work
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so, in seven months, the price dropped by $600. correct?
thats what i thought..
right, so how much did it drop per month on average?
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how did you get 100?
do i divide the months by 600
you want to do 7 / 600? Why?
the total drop in price over 7 months was 600 dollars.
so, how much was the drop on average per month?
right. so the rate of change in price was -85 dollars per month
you put -85 because the price is reducing.
the rate of change means how fast the price is reducing over time.
january to sept IS 7 MONTHS?
jan to feb is 1 month
feb to march is 1 month
march to april is 1 month
april to may is 1 month
may to june is 1 month
june to july is 1 month
july to august is 1 month
august to september is 1 month
so the total number of months is 8, not 7. andrea, use 8 instead of 7 to get your answer.
thanks nancy, for pointing that out!