document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=662333>Question 662333</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An investor invested a total of $3600 in two mutual funds. One fund earned a 7% profit while the other earned a 3% profit. If the investor's total profit was $172, how much was invested in each mutual fund? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #412121 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=412121\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y = 3600<BR>\n" );
document.write( ".07x + .03y = 172<BR>\n" );
document.write( "substitute into the second equation<BR>\n" );
document.write( ".07(3600 - y) + .03y = 172<BR>\n" );
document.write( "252 - .07y + .03y = 172<BR>\n" );
document.write( "252 - 172 = .04y<BR>\n" );
document.write( "80 = .04y<BR>\n" );
document.write( "y = $2000 at 3%<BR>\n" );
document.write( "x = 3600 - 2000 = $1600 at 7%<BR>\n" );
document.write( "Proof<BR>\n" );
document.write( ".07(1600) + .03(2000)<BR>\n" );
document.write( "112 + 60 = 172 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );