document.write( "Question 904732: A Web music store offers two versions of a popular song. The size of the standard version is 2.5 megabytes (MB). The size of the high-quality version is 4.8 MB. Yesterday, there were 800 downloads of the song, for a total download size of 3288 MB. How many downloads of the high-quality version were there? \n" ); document.write( "
Algebra.Com's Answer #548929 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! S+H=800, \n" ); document.write( "2.5*S+4.8*H=3288 \n" ); document.write( "S=800-H \n" ); document.write( "2.5*(800-H)+4.8*H=3288 \n" ); document.write( "2000.0-2.5H+4.8*H=3288 \n" ); document.write( "2.3*H=1288.0 \n" ); document.write( "H=560.0 \n" ); document.write( "S=800-H \n" ); document.write( "S=240 at 2.5 and H=560 at 4.8 \n" ); document.write( "check \n" ); document.write( "240+560=800 \n" ); document.write( "2.5*S+4.8*H=3288 \n" ); document.write( "2.5*240+4.8*560=3288 \n" ); document.write( "600.0+2688.0=3288 \n" ); document.write( "3288.0=3288 \n" ); document.write( "ok\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |