anonymous
  • anonymous
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
so, in seven months, the price dropped by $600. correct?
anonymous
  • anonymous
thats what i thought..
anonymous
  • anonymous
right, so how much did it drop per month on average?

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anonymous
  • anonymous
100?
anonymous
  • anonymous
how did you get 100?
anonymous
  • anonymous
do i divide the months by 600
anonymous
  • anonymous
you want to do 7 / 600? Why?
anonymous
  • anonymous
the total drop in price over 7 months was 600 dollars. so, how much was the drop on average per month?
anonymous
  • anonymous
85
anonymous
  • anonymous
right. so the rate of change in price was -85 dollars per month
anonymous
  • anonymous
you put -85 because the price is reducing.
anonymous
  • anonymous
the rate of change means how fast the price is reducing over time.
anonymous
  • anonymous
january to sept IS 7 MONTHS?
anonymous
  • anonymous
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!

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