anonymous
  • anonymous
i have been stuck on this question for a week please help From 1985 to 2000 the percent p of total music sales with a certain format is modeled by p=5.7t - 11,308 where t is the year. (a) evaluate p for t= 1985 and t =2000 (b) use your results from part (a) to graph the equation from 1985 to 2000 (c) in what year was p = 74.9%? (a) p = for t = 1985 round to the nearest tenth as needed P = for t = 2000 round to the nearest tenth as needed (C) in what year was p = 74.9%?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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jdoe0001
  • jdoe0001
can you part A)?
jdoe0001
  • jdoe0001
can you do that is, part A)
anonymous
  • anonymous
huh

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jdoe0001
  • jdoe0001
(a) evaluate p for t= 1985 and t =2000 <---
anonymous
  • anonymous
okay
anonymous
  • anonymous
i don't understand
jdoe0001
  • jdoe0001
"From 1985 to 2000 the percent p of total music sales with a certain format is modeled by \(\bf \large p=5.7t - 11,308\)" the equation to get the % of music sales per year is \(\bf \large p=5.7t - 11,308\) (a) evaluate p for t= 1985 and t =2000 that means "evaluate p" ,that is find the music sales in % "for t = 1985, and t = 2000" for the years of 1985 and 2000 how? well, we know the years in the equation is "t" so we set t = 1985 \(\bf \large p=5.7(1985) - 11,308\) t = 2000 \(\bf \large p=5.7(2000) - 11,308\)
anonymous
  • anonymous
okay
anonymous
  • anonymous
what is next?
jdoe0001
  • jdoe0001
well, what "p" values did you get?
anonymous
  • anonymous
are you suppose to subtract 1985 - 11,308
jdoe0001
  • jdoe0001
\(\bf \bf \large p=5.7(1985) - 11,308 \implies p=5.7\times(1985) - 11,308 \)
anonymous
  • anonymous
can you please explain i am not that good at math i need to know step by step
jdoe0001
  • jdoe0001
not sure there many steps there, is just plain multiplication and addtion
jdoe0001
  • jdoe0001
can't really kill a dead cat heheh, sorta speak

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