document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=715739>Question 715739</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a certain alloy contains 9% silver , another alloy is 14% silver. HOW MUCH OF EACH TYPE SHOULD BE COMBINED TO MAKE 10 KG OF AN ALLOY THAT CONTAINS 12% SILVER? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #439564 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=439564\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Amount of Silver divided by amount of alloy equals 12%.\r<BR>\n" );
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document.write( "x the 9% Silver.  y the 14% Silver.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%289x%2B14y%29%2F10=12 ALIGN=MIDDLE  ALT=\"%289x%2B14y%29%2F10=12\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By=10 ALIGN=MIDDLE  ALT=\"x%2By=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Use the rational percent equation first.  <BR>\n" );
document.write( "9x+14y=120\r<BR>\n" );
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document.write( "The system to solve is this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%289x%2B14y=120%29 ALIGN=MIDDLE  ALT=\"highlight%289x%2B14y=120%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x%2By=10%29 ALIGN=MIDDLE  ALT=\"highlight%28x%2By=10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Try elimination.  Multiply second equation by 9 and subtract from first equation.  Solve for value of y.<BR>\n" );
document.write( "9x+14y-9x-9y=120-90<BR>\n" );
document.write( "5y=30<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=6%29 ALIGN=MIDDLE  ALT=\"highlight%28y=6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  kg of the 14% alloy\r<BR>\n" );
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document.write( "Use the second equation, the mass equation, to get the value for x.  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=4%29 ALIGN=MIDDLE  ALT=\"highlight%28x=4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >  kg of the 9% alloy<BR>\n" );
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