SOLUTION: i have two questions i have been working on for a week please help question 1 From 1985 to 2000 the percent p of total music sales with a certain format is modeled by p=5.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: i have two questions i have been working on for a week please help question 1 From 1985 to 2000 the percent p of total music sales with a certain format is modeled by p=5.      Log On


   



Question 780499: i have two questions i have been working on for a week please help

question 1
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 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%?
question 2


In 1980 median family income was about $17,000 and in 2000
it was about $43,000
(a)
find the slope of the line passing through the points (1980, 17000) and (2000,43000)
(b)
interpret the slope as a rate of change
(c)
if this trend continues estimate the median
family income in 2004

(a)m=

(b)interpret the slope as a rate of change choose the
right answer below

A the median family income decreases by $1300
between 1980 and 2000
B the median family income is decreasing at the rate of $1300
per year
C the median family income increases by $1300 between 1980
and 2000
D the median family income is increasing at the rate of $
1300 per year

(c)The median family income in 2004 will be ? $

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


You are only supposed to submit one problem per posting, however, I will do both problems for you IF you show ALL of the work that you have done on these problems in the week you have been working on them.

John

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