document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=903938>Question 903938</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mrs.Santos invests P21,000 at 8% interest rate.How much more must he invest       at 9 1/2% interest to have an annual income of 9% of his total investments? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548436 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=548436\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 0.08*21000+0.095(x)=0.09(21000+x)<BR>\n" );
document.write( "Multiply out.<BR>\n" );
document.write( "1680+0.095(x)=1890+0.09x<BR>\n" );
document.write( "combine like terms<BR>\n" );
document.write( "0.005x=210<BR>\n" );
document.write( "isolate x<BR>\n" );
document.write( "x=210/0.005<BR>\n" );
document.write( "Divide<BR>\n" );
document.write( "x=42000.0\r<BR>\n" );
document.write( "\n" );
document.write( "check<BR>\n" );
document.write( "0.08*21000+0.095(x)=0.09(21000+x)<BR>\n" );
document.write( "1680+0.095*42000.0=0.09(21000+42000.0)<BR>\n" );
document.write( "1680+3990.0=0.09(63000.0)<BR>\n" );
document.write( "5670.0=5670.0<BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );