document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957518>Question 957518</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a man invest 3,000 dollars at a certain rate and 4,000 dollars at rate of 2/3 as high. his annual income from the two investments 180 dollars. find the interest rates? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585123 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=585123\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "i=certain rate<BR>\n" );
document.write( "$3000i+$4000(2/3)i=180<BR>\n" );
document.write( "$3000i+$2667i=180<BR>\n" );
document.write( "5667i=$180 Divide each side by 5667<BR>\n" );
document.write( "i=3.2% ANSWER 1: The certain interest rate was 3.2%<BR>\n" );
document.write( "2/3i=2.1% ANSWER 2: The lower interest rate was 2.1%<BR>\n" );
document.write( "CHECK<BR>\n" );
document.write( "$3000i+$4000(2/3i)=$180<BR>\n" );
document.write( "$3000(0.032)+$4000(0.021)=$180<BR>\n" );
document.write( "$96+$84=$180<BR>\n" );
document.write( "$180=$180<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );