document.write( "Question 975828: 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 4.9 MB. Yesterday, there were 710 downloads of the song, for a total download size of 2279 MB. How many downloads of the high-quality version were these?\r
\n" ); document.write( "\n" ); document.write( "Just trying to see what formula to Use...\r
\n" ); document.write( "\n" ); document.write( "Do I Divide 49. by 2,279?\r
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Algebra.Com's Answer #597472 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
This one I did yesterday.\r
\n" ); document.write( "\n" ); document.write( "x= the standard version
\n" ); document.write( "y=the 4.9 version
\n" ); document.write( "x+y=710
\n" ); document.write( "2.5x + 4.9 y=2279
\n" ); document.write( "multiply first by (-2.5)
\n" ); document.write( "-2.5x-2.5y = -1775;; Now add the first and the second to eliminate x.
\n" ); document.write( "2.4 y=504;;; divide both sides by 2.4
\n" ); document.write( "y=210 of the 4.9 MB
\n" ); document.write( "x=500 of the 2.5 MB
\n" ); document.write( "Check
\n" ); document.write( "210*4.9=1029
\n" ); document.write( "500*2.5=1250
\n" ); document.write( "Total is 2279 , all units are MB
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