document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=780535>Question 780535</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tank holds 100 liters of a chemical solution. Currently, the solution has a strength of 60%. How much of this should be drained and replaced with 100% solution to get a final strength of 80%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #475650 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=475650\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A tank holds 100 liters of a chemical solution. Currently, the solution has a strength of 60%. How much of this should be drained and replaced with 100% solution to get a final strength of 80%?<BR>\n" );
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document.write( "let x=amount 60% solution should be drained and replaced with 100% solution.<BR>\n" );
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document.write( "60%(100-x)+100%x=80%*100<BR>\n" );
document.write( "60-0.6x+x=80<BR>\n" );
document.write( "0.4x=20<BR>\n" );
document.write( "x=50<BR>\n" );
document.write( "amount of 60% solution should be drained and replaced =50 liters<BR>\n" );
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