document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1186993>Question 1186993</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A part of P10,000 is invested at 4% and the remainder at 3. ½%. The annual <BR>\n" );
document.write( "income from both is P380. Find the amount of each investment. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #819490 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=819490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x equals the investment at 4%.<BR>\n" );
document.write( "y equals the investment at 3.5%.\r<BR>\n" );
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document.write( "you have two equations that need to be solved simultaneously.\r<BR>\n" );
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document.write( "they are:\r<BR>\n" );
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document.write( "x + y = 10000<BR>\n" );
document.write( ".04x + .035y = 380\r<BR>\n" );
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document.write( "multiply both sides of the first eqution by .04 and leave the second equation as is to get:\r<BR>\n" );
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document.write( ".04x + .04y = 400<BR>\n" );
document.write( ".04x + .035y = 380\r<BR>\n" );
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document.write( "subtract the second equation from the first to get:\r<BR>\n" );
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document.write( ".005y = 20\r<BR>\n" );
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document.write( "solve for y to get:\r<BR>\n" );
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document.write( "y = 20/.005 = 4000\r<BR>\n" );
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document.write( "that makes x equal to 10000 - 4000 = 6000.\r<BR>\n" );
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document.write( ".04*6000 + .035*4000 = 240 + 140 = 380.\r<BR>\n" );
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document.write( "this confirms the solution is correct.\r<BR>\n" );
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document.write( "your solution is that 6000 is invested at 4% and 4000 is invested at 3.5%.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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