document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=659391>Question 659391</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 10g 15% gold alloy is mixed with a 20g 5% gold alloy. What is the ercent concentration of the resulting alloy? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #410768 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=410768\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A 10g 15% gold alloy is mixed with a 20g 5% gold alloy. What is the ercent concentration of the resulting alloy?<BR>\n" );
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document.write( "10 gm of 15% = 1.5 gm of gold<BR>\n" );
document.write( "20 gm of 5% = 1 gm of gold<BR>\n" );
document.write( "2.5 gm of gold in 30 gms total = 2.5/30<BR>\n" );
document.write( "= 1/12<BR>\n" );
document.write( "=~ 8.33% gold<BR>\n" );
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document.write( "Or,<BR>\n" );
document.write( "10*15 + 20*5 = x*30<BR>\n" );
document.write( "30x = 250<BR>\n" );
document.write( "x = 8.33%<BR>\n" );
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