SOLUTION: I purchased a total of 8 music mp3 and movies from iTunes this month. The total purchase price of the movies and music mp3 is $34.92. If I each movie cost 9.99 and each music file

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: I purchased a total of 8 music mp3 and movies from iTunes this month. The total purchase price of the movies and music mp3 is $34.92. If I each movie cost 9.99 and each music file      Log On


   



Question 291903: I purchased a total of 8 music mp3 and movies from iTunes this month. The total purchase price of the movies and music mp3 is $34.92. If I each movie cost 9.99 and each music file cost $0.99, then how many music files and how many movies did I purchase? Please use either the addition (elimination) or substitution method to solve this problem.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
mp3=u
movie =o
u+o=8
99*u+999*o=3492
o=3 u=5