document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=639229>Question 639229</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having trouble solving this word problem: \r<BR>\n" );
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document.write( "An amount of money is invested at 4% annual simple interest, and twice that amount is is invested at 5%. The total annual interested is $112. How much is invested at each rate?\r<BR>\n" );
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document.write( "I would like to see what the equation would be to help solve a problem like this. Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #402736 by </B><A HREF=/tutors/aboutme.mpl?userid=cta1987><B>cta1987(8)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=cta1987><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=cta1987><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=402736\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I=prt\r<BR>\n" );
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document.write( "Since the word problem did not mention time, it is understood to be 1 year.\r<BR>\n" );
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document.write( "interest=112<BR>\n" );
document.write( "principal=0.04x<BR>\n" );
document.write( "rate=0.05(2x)<BR>\n" );
document.write( "time=1 year\r<BR>\n" );
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document.write( "0.04x+0.05(2x)=112<BR>\n" );
document.write( "100(0.04x+0.05[2x]=112)<BR>\n" );
document.write( "4x+10x=11200<BR>\n" );
document.write( "14x=11200<BR>\n" );
document.write( "x=800\r<BR>\n" );
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document.write( "Checking<BR>\n" );
document.write( "0.05(2)(800)=80<BR>\n" );
document.write( "0.04(800)=32 </SPAN>\n" );
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