document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=193525>Question 193525</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One year ago Walt invested $12,000. He invested part of the money at 7% and the rest at 9%. He made a total of $970 in interest. How much was invested at 7%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #145263 by </B><A HREF=/tutors/aboutme.mpl?userid=RAY100><B>RAY100(1637)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RAY100><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=145263\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let   x=  amount  invested  at  .07<BR>\n" );
document.write( "let  y  =  amount  invested  at  .09\r<BR>\n" );
document.write( "\n" );
document.write( "x+y=$12,000,,,,or  x=12000-y<BR>\n" );
document.write( "total  made  is  970=.07x+.09y<BR>\n" );
document.write( "subst<BR>\n" );
document.write( "970=.07(12000-y)+.09y<BR>\n" );
document.write( "970=840-.07y+.09y<BR>\n" );
document.write( "130=.02y<BR>\n" );
document.write( "y=6500<BR>\n" );
document.write( "x=12000-6500=5500<BR>\n" );
document.write( "check<BR>\n" );
document.write( ".07*5500+.09*6500<BR>\n" );
document.write( "385+585=970,,,,ok </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );