document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=154226>Question 154226</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395977258/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> a man invested $6000, part of it at 5%simple interest and the rest at 7% simple interest. If his annual interest income is $372, how much did he invest at 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 #113568 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=113568\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .07x+.05(6,000-x)=372<BR>\n" );
document.write( ".07x+300-.05x=372<BR>\n" );
document.write( ".02x=372-300<BR>\n" );
document.write( ".02x=72<BR>\n" );
document.write( "x=72/.02<BR>\n" );
document.write( "x=$3,600 invested @7%.<BR>\n" );
document.write( "6,000-3,600=$2,400 invested @5%.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".07*3,600+.05*2,400=372<BR>\n" );
document.write( "252+120=372<BR>\n" );
document.write( "372=372 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );