document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=895619>Question 895619</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a mother invest $13,000.00 for her son's future education she invests a portion of the money in a bank certificate of deposit (cd account) which earns 4% and the remainder in a savings bond that earns 7%. if the total interest after one year is $780.00, how much money was invested in the cd account. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #546465 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=546465\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=13000,<BR>\n" );
document.write( "0.04*x+0.07*y=780<BR>\n" );
document.write( "x=13000-y<BR>\n" );
document.write( "0.04*(13000-y)+0.07*y=780<BR>\n" );
document.write( "520-0.04y+0.07*y=780<BR>\n" );
document.write( "0.03*y=260<BR>\n" );
document.write( "y=8666.66667 at 7%<BR>\n" );
document.write( "x=13000-y<BR>\n" );
document.write( "x=4333.33333 at 4%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.04*4333.33333+0.07*8666.66667=780<BR>\n" );
document.write( "173.333333+606.666667=780<BR>\n" );
document.write( "780.0=780<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );