Question

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%?

Answer 1

can you part A)?

Answer 2

can you do that is, part A)

Answer 3

huh

Answer 4

(a) evaluate p for t= 1985 and t =2000 <---

Answer 5

okay

Answer 6

i don't understand

Answer 7

"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
\(\bf \large p=5.7(2000) - 11,308\)

Answer 8

okay

Answer 9

what is next?

Answer 10

well, what "p" values did you get?

Answer 11

are you suppose to subtract 1985 - 11,308

Answer 12

\(\bf \bf \large p=5.7(1985) - 11,308 \implies p=5.7\times(1985) - 11,308 \)

Answer 13

can you please explain i am not that good at math i need to know step by step

Answer 14

not sure there many steps there, is just plain multiplication and addtion

Answer 15

can't really kill a dead cat heheh, sorta speak