document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=213661>Question 213661</A>: <I><SPAN STYLE=\"word-break: break-all;\"> \"in a chemistry class, 7 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed?\" </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #161419 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=161419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> in a chemistry class, 7 liters of a 4% silver iodide solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10% solution are needed<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "iodide + iodide = iodide<BR>\n" );
document.write( "0.04*7 + 0.10x = 0.06(7+x)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "4*7 + 10x = 6(7+x)<BR>\n" );
document.write( "4*7 + 10x = 6*7 + 6x<BR>\n" );
document.write( "4x = 2*7<BR>\n" );
document.write( "x = 3.5 liters (amount of 10% solution needed for the mixture)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );