document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=567512>Question 567512</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A jeweler has 5 rings, each weighing 16 g, made of an alloy of 15% silver and 85% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 80%. How much silver should she add? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #366579 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=366579\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A jeweler has 5 rings, each weighing 16 g, made of an alloy of 15% silver and 85% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 80%. How much silver should she add?<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "silver + silver = silver<BR>\n" );
document.write( "0.15*5*16 + 1*x = 0.20(80+x)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "15*80 + 100x = 20*80 + 20x<BR>\n" );
document.write( "80x = 5*80<BR>\n" );
document.write( "x = 5 grams of silver (amt. of silver to be added)<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" );