document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=110975>Question 110975</A>: <I><SPAN STYLE=\"word-break: break-all;\">  The cost of 12 oranges and 7 apples is $5.36. Eight oranges and 5 apples cost $3.68. Find the cost of each orange.\r<BR>\n" );
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document.write( " Sam invested a total of $10,000, part at 8% and the rest at 3%. How much was invested at 8% if he earned a total of $600 in one year? (Use the formula , Interest = principal * time * rate)\r<BR>\n" );
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document.write( "These are very confusing\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #80958 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=80958\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=oranges and a=apples ___ 12x+7a=536 ___ 8x+5a=368\r<BR>\n" );
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document.write( "multiplying the first equation by 5 gives 60x+35a=2680<BR>\n" );
document.write( "multiplying the second equation by -7 gives -56x-35a=-2576\r<BR>\n" );
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document.write( "adding the resulting equations gives 4x=104\r<BR>\n" );
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document.write( "let x=\"amount @ 8%\", so 10000-x=\"amount @ 3%\" ___ x(8%)+((10000-x)(3%))=600\r<BR>\n" );
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document.write( ".08x+300-.03x=600 ___ .05x=300 </SPAN>\n" );
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