document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=565566>Question 565566</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This really confuses me since it showed be put in the formula I=prt. If this was explained that would help! Thanks.\r<BR>\n" );
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document.write( "Madison invested $50,000 for two years. A part of this investment had 10% annual interest and the rest was invested at 15% annual interest. The interest from the investment at 10% was $350 more than the interest from the investment at 15%. How much did she invest at 10%? How much did she invest at 15%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #365894 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=365894\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Madison invested $50,000 for two years. A part of this investment had 10% annual interest and the rest was invested at 15% annual interest. The interest from the investment at 10% was $350 more than the interest from the investment at 15%. How much did she invest at 10%? How much did she invest at 15%?<BR>\n" );
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document.write( "I=prt, p=initial investment, r=annual rate of interest, and I=amt after t years<BR>\n" );
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document.write( "let x=$ amt invested at 10%<BR>\n" );
document.write( "50000-x=$ amt invested at 15%<BR>\n" );
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document.write( "At 10%<BR>\n" );
document.write( "I=(10%*2)x=.2x<BR>\n" );
document.write( "At 15%<BR>\n" );
document.write( "I=(15%*2)(50000-x)=(15000-.3x)<BR>\n" );
document.write( "Since the 10% investment made $350 more than the 15% investment,<BR>\n" );
document.write( ".2x-(15000-.3x)=350<BR>\n" );
document.write( ".2x-15000+.3x=350<BR>\n" );
document.write( ".5x=15350<BR>\n" );
document.write( "x=30700<BR>\n" );
document.write( "50000-x=19300<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "amt invested at 10%=$30,700<BR>\n" );
document.write( "amt invested at 15%=$19,300 </SPAN>\n" );
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