document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=934739>Question 934739</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 100 grams of an alloy containing 35% copper with 60 grams of an alloy containing 55% copper. How many grams of copper are in the resulting mixture? What percentage of the resulting mixture is copper?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567765 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=567765\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = percentage of copper in the resulting mixture<BR>\n" );
document.write( "y = grams of copper in the resulting mixture<BR>\n" );
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document.write( "100*0.35 + 60*0.55 = (100 + 60)x/100<BR>\n" );
document.write( "100*( 100*0.35 + 60*0.55 ) = (100 + 60)x<BR>\n" );
document.write( "x = 100*( 100*0.35 + 60*0.55 )/(100 + 60)<BR>\n" );
document.write( "x = percentage of copper in the resulting mixture = 42.5%<BR>\n" );
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document.write( "y = (100 + 60)x/100<BR>\n" );
document.write( "y = (100 + 60)*42.5/100<BR>\n" );
document.write( "y = grams of copper in the resulting mixture = 68 grams<BR>\n" );
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