document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=900309>Question 900309</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A metalworker has a metal alloy that is 30% copper and another that is 70% copper how many kilograms of each alloy should the metalworker combine to create 50kg of a 62% copper alloy?\r<BR>\n" );
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document.write( "thanks for the help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #545921 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=545921\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+b=50,<BR>\n" );
document.write( "0.3*a+0.7*b=0.62*50<BR>\n" );
document.write( "a=50-b<BR>\n" );
document.write( "0.3*(50-b)+0.7*b=31<BR>\n" );
document.write( "15-0.3b+0.7*b=31<BR>\n" );
document.write( "0.4*b=16<BR>\n" );
document.write( "b=40<BR>\n" );
document.write( "a=50-b<BR>\n" );
document.write( "a=10 at 30% b=40 at 70%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.3*10+0.7*40=0.62*50<BR>\n" );
document.write( "3+28=31<BR>\n" );
document.write( "31=31<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
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