document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=551081>Question 551081</A>: <I><SPAN STYLE=\"word-break: break-all;\"> HUANG invested $9000 in mutual funds and bonds. the mutual fund earned 11% simnple interest. the bond earned 6% simple interest. at the end of one year, he had earned $815 in interest. how much did he invested each rate? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #359423 by </B><A HREF=/tutors/aboutme.mpl?userid=mathstutor458><B>mathstutor458(57)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathstutor458><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=359423\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> HUANG invested $9000 in mutual funds and bonds.<BR>\n" );
document.write( "let HUANG invested in mutual fund is x, so bond investment=9000-x<BR>\n" );
document.write( "the mutual fund earned 11% simnple interest=11% of x=11x/100<BR>\n" );
document.write( "the bond earned 6% simple interest=6% of x=6(9000-x)/100<BR>\n" );
document.write( "at the end of one year, he had earned $815 in interest.<BR>\n" );
document.write( "Therefore,11x/100 + 6(9000-x)/100 =815<BR>\n" );
document.write( "(11x+6(9000-x))/100 = 815<BR>\n" );
document.write( "11x+54000-6x=815 * 100<BR>\n" );
document.write( "5x=81500-54000<BR>\n" );
document.write( "5x=27500<BR>\n" );
document.write( "x=27500/5=5500<BR>\n" );
document.write( "HUANG invested in mutual fund is $5500<BR>\n" );
document.write( "HUANG invested in bond is 9000-5500= $4500 </SPAN>\n" );
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