document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=902037>Question 902037</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are available 10 tons of coal containing 2.5% sulfur and also supplies of coal containing .80% and 1.10% sulfur respectively.  How many times of each of the latter should be mixed with the original 10 tons to give 20 tons<BR>\n" );
document.write( " containing 1.7% sulfur? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #547065 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=547065\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=10<BR>\n" );
document.write( ".025*10+.008*x+.011*y=20*.017=.34<BR>\n" );
document.write( ".25+.008*x+.011*y=.34<BR>\n" );
document.write( ".008*x+.011*y=.09<BR>\n" );
document.write( "x+y=10,<BR>\n" );
document.write( "0.008*x+0.011*y=0.09<BR>\n" );
document.write( "x=10-y<BR>\n" );
document.write( "0.008*(10-y)+0.011*y=0.09<BR>\n" );
document.write( "0.08-0.008y+0.011*y=0.09<BR>\n" );
document.write( "0.003*y=0.01<BR>\n" );
document.write( "y=3.33333333 at 1.1%<BR>\n" );
document.write( "x=10-y<BR>\n" );
document.write( "x=6.66666667 at 0.8%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.008*6.66666667+0.011*3.33333333=0.09<BR>\n" );
document.write( "0.53333333e-1+0.36666667e-1=0.09<BR>\n" );
document.write( "0.09=0.09<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );