document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1149065>Question 1149065</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 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  4.2 MB. Yesterday, the high-quality version was downloaded twice as often as the standard version. The total size downloaded for the two versions was 2398 MB. How many downloads of the standard version were there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #770410 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=770410\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of downloads of the standard version<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of downloads of the high-quality version<BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+2a+ ALIGN=MIDDLE  ALT=\"+b+=+2a+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5a+%2B+4.2b+=+2398+ ALIGN=MIDDLE  ALT=\"+2.5a+%2B+4.2b+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5a+%2B+4.2%2A%282a%29+=+2398+ ALIGN=MIDDLE  ALT=\"+2.5a+%2B+4.2%2A%282a%29+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" > MB<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+2.5+%2B+4.2%2A2+%29%2Aa+=+2398+ ALIGN=MIDDLE  ALT=\"+%28+2.5+%2B+4.2%2A2+%29%2Aa+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" > MB<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10.9a+=+2398+ ALIGN=MIDDLE  ALT=\"+10.9a+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" > MB<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+220+ ALIGN=MIDDLE  ALT=\"+a+=+220+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+2%2A220+ ALIGN=MIDDLE  ALT=\"+b+=+2%2A220+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+440+ ALIGN=MIDDLE  ALT=\"+b+=+440+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "There were 220 downloads of the standard version<BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5a+%2B+4.2b+=+2398+ ALIGN=MIDDLE  ALT=\"+2.5a+%2B+4.2b+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.5%2A220+%2B+4.2%2A440+=+2398+ ALIGN=MIDDLE  ALT=\"+2.5%2A220+%2B+4.2%2A440+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+550+%2B+1848+=+2398+ ALIGN=MIDDLE  ALT=\"+550+%2B+1848+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2398+=+2398+ ALIGN=MIDDLE  ALT=\"+2398+=+2398+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );