document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=210377>Question 210377</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A computer store sold a total of 300 items last month. The store sold six times as many hard drives as they did CD-ROM drives, and half as many floppy drives as hard drives. Based on this information, how may of each item were sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158980 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=158980\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let H = number of hard drives.<BR>\n" );
document.write( "C = number of CD-ROM drives.<BR>\n" );
document.write( "F = number of floppy drives.<BR>\n" );
document.write( "H+C+F = 300 and...<BR>\n" );
document.write( "C =6H \"The store sold 6 times as many hard drives (6H) as they did CD-ROM drives (C).\"<BR>\n" );
document.write( "F = H/2 \"...and half as many floppy drives as hard drives.\"<BR>\n" );
document.write( "Now you can modify the first equation based on the above data:<BR>\n" );
document.write( "H+6H+H/2 = 300 Multiply through by 2.<BR>\n" );
document.write( "2H+12H+H = 600 Combine like-terms.<BR>\n" );
document.write( "15H = 600 Divide both sides by 15.<BR>\n" );
document.write( "H = 40 and...<BR>\n" );
document.write( "C = 6H<BR>\n" );
document.write( "C = 6(40)<BR>\n" );
document.write( "C = 240 and...<BR>\n" );
document.write( "F = H/2<BR>\n" );
document.write( "F = 40/2<BR>\n" );
document.write( "F = 20<BR>\n" );
document.write( "40 hard drives, 240 CD-ROM-drives, and 20 floppy drives were sold.<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "40+240+20 = 300 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );