document.write( "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. \n" ); document.write( "
Algebra.Com's Answer #210975 by richwmiller(17219)\"\" \"About 
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mp3=u
\n" ); document.write( "movie =o
\n" ); document.write( "u+o=8
\n" ); document.write( "99*u+999*o=3492
\n" ); document.write( "o=3 u=5
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