document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=549304>Question 549304</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a man mixes 100 lbs of 90% copper alloy with 150 lbs of 60% copper alloy what is his percentage of the total copper alloy? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #357607 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=357607\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a man mixes 100 lbs of 90% copper alloy with 150 lbs of 60% copper alloy what is his percentage of the total copper alloy?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "copper + copper = copper<BR>\n" );
document.write( "0.90*100 + 0.60*150 = x(100+150)<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "90*100 + 60*150 = x(25000)<BR>\n" );
document.write( "25000x = 9000+9000<BR>\n" );
document.write( "x = 0.72 = 72%<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "==================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );