document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855701>Question 855701</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much of an alloy that is 30% copper should be mixed with 200 ounces of an alloy that is 70 % copper in order to get an alloy that is 50 % copper\r<BR>\n" );
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document.write( "this is what I came up with...is this right\r<BR>\n" );
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document.write( "x(30%)+(200)(70%)=200+x(50)<BR>\n" );
document.write( ".3x+140=100+.5x<BR>\n" );
document.write( "40=.2x<BR>\n" );
document.write( "x=200 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515531 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=515531\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x how much to add or use\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2830x%2B200%2A70%29%2F%28x%2B200%29=50 ALIGN=MIDDLE  ALT=\"%2830x%2B200%2A70%29%2F%28x%2B200%29=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Your initial setup seems good.  Maybe you let the switch to decimal fractions confuse you?\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30x%2B200%2A70=50%28x%2B200%29 ALIGN=MIDDLE  ALT=\"30x%2B200%2A70=50%28x%2B200%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B200%2A7=5%28x%2B200%29 ALIGN=MIDDLE  ALT=\"3x%2B200%2A7=5%28x%2B200%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B1400=5x%2B1000 ALIGN=MIDDLE  ALT=\"3x%2B1400=5x%2B1000\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=200%29 ALIGN=MIDDLE  ALT=\"highlight%28x=200%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and in fact this works as correct when tried as a check in our original equation.\r<BR>\n" );
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document.write( "(Seemed strange to me also, ...until examining the AVERAGE of 30 and 70.  Their middle value IS 50.) </SPAN>\n" );
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