document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=973804>Question 973804</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Formulate but do not solve the problem.\r<BR>\n" );
document.write( "\n" );
document.write( "Kelly Fisher invested a total of $20,000 in two municipal bonds that have yields of 7% and 10% interest per year, respectively. If the interest Kelly receives from the bonds in a year is $1640, how much did she invest in each bond? (Let x and y denote the amount, in dollars, invested at 7% and 10%, respectively.\r<BR>\n" );
document.write( "\n" );
document.write( "         =20,000<BR>\n" );
document.write( "         =1640<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #595860 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=595860\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Formulate but do not solve the problem. <BR>\n" );
document.write( "Kelly Fisher invested a total of $20,000 in two municipal bonds that have yields of 7% and 10% interest per year, respectively. If the interest Kelly receives from the bonds in a year is $1640, how much did she invest in each bond? (Let x and y denote the amount, in dollars, invested at 7% and 10%, respectively.<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Using two variables::<BR>\n" );
document.write( "Quantity equation:: x + y = 20,000 dollars<BR>\n" );
document.write( "Interest equation::7x + 10y = 164000 dollars<BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "OR, just using one variable::<BR>\n" );
document.write( "7x + 10(20,000-x) = 164000<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "--------------- <BR>\n" );
document.write( "=20,000<BR>\n" );
document.write( "=1640 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );