document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=306555>Question 306555</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Roberto invested some money at 7%, and then invested $2000 more than twice this amount at 10%.<BR>\n" );
document.write( "His total annual income from the two investments was $3980. How much was invested at 10%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #219365 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=219365\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .07x+.10(2x+2,000)=3,980<BR>\n" );
document.write( ".07x+.20x+200=3,980<BR>\n" );
document.write( ".27x=3,980-200<BR>\n" );
document.write( ".27x=3,780<BR>\n" );
document.write( "x=3,780/.27<BR>\n" );
document.write( "x=$14,000 amount invested @ 7%<BR>\n" );
document.write( "2*14,000+2,000=28,000+2,000=$30,000 invested @ 10%<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".07*14,000+.10*30,000=3,980<BR>\n" );
document.write( "980+3,000=3,980<BR>\n" );
document.write( "3,980=3,980 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );