document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=662100>Question 662100</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A college student earned $7200 during summer vacation working as a waiter at a popular restaurant. the student invested part of the money at 9% and the rest at 6%. if the student received a total of $492 in interest at the end of the year, how much was invested at 9%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #411920 by </B><A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><B>ReadingBoosters(3246)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ReadingBoosters><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=411920\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .09x + .06y = 492<BR>\n" );
document.write( "x+y=7200<BR>\n" );
document.write( "....................<BR>\n" );
document.write( "Substitution<BR>\n" );
document.write( ".09(7200-y) + .06y = 492<BR>\n" );
document.write( "648 - .09y + .06y = 492<BR>\n" );
document.write( "648 - 492 = .09y - .06y<BR>\n" );
document.write( "156 = .03y<BR>\n" );
document.write( "5200 = y = $ at 6%<BR>\n" );
document.write( "7200 - 5200 = 2000 = x = $ at 9%<BR>\n" );
document.write( "....................<BR>\n" );
document.write( "$5200 at 6%<BR>\n" );
document.write( "$2000 at 9% </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );