document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=847923>Question 847923</A>: <I><SPAN STYLE=\"word-break: break-all;\"> willie cabaysa invests $10200 at 8 1/2%. how much money must he invest at 7% so that his total annual income from the two investments will equal 8% of the total principal? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548671 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=548671\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 0.085*10200+0.07(x)=0.08(10200+x)<BR>\n" );
document.write( "Multiply out.<BR>\n" );
document.write( "867.0+0.07(x)=816+0.08x<BR>\n" );
document.write( "combine like terms<BR>\n" );
document.write( "-0.01x=-51.0<BR>\n" );
document.write( "isolate x<BR>\n" );
document.write( "x=-51.0/-0.01<BR>\n" );
document.write( "Divide<BR>\n" );
document.write( "x=5100.0<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.085*10200+0.07(x)=0.08(10200+x)<BR>\n" );
document.write( "867.0+0.07*5100.0=0.08(10200+5100.0)<BR>\n" );
document.write( "867.0+357.0=0.08(15300.0)<BR>\n" );
document.write( "1224.0=1224.0<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );