document.write( "Question 1081770: A Web music store offers two versions of a popular song. The size of the standard version is
\n" );
document.write( "2.1
\n" );
document.write( " megabytes (MB). The size of the high-quality version is
\n" );
document.write( "4.4
\n" );
document.write( "MB. Yesterday, there were
\n" );
document.write( "890
\n" );
document.write( " downloads of the song, for a total download size of
\n" );
document.write( "2536
\n" );
document.write( " MB. How many downloads of the standard version were there? \n" );
document.write( "
Algebra.Com's Answer #696197 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! Let m be the amount of standard-version downloads, and n be the number of high-quality downloads. Then: \n" ); document.write( "m+n=890 \n" ); document.write( "2.1m+4.4n=2536 \n" ); document.write( "So: \n" ); document.write( "2.1m+4.4n=2536 \n" ); document.write( "2.1m+2.1n=1869 \n" ); document.write( "2.3n=667 \n" ); document.write( "n=290 \n" ); document.write( "m=600 \n" ); document.write( "There were 600 standard downloads and 290 high-quality downloads of the song. ☺☺☺☺ \n" ); document.write( " |