document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=900786>Question 900786</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist needs 130 mL of a 28% solution but has only 18% and 83% solutions available. Find how many mL of each solution should be mixed to get the desired solution.<BR>\n" );
document.write( "The answer is 110mL of 18%: 20mL of 83%<BR>\n" );
document.write( "I don't know how to set it up. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #546137 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=546137\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+b=130,<BR>\n" );
document.write( "0.18*a+0.83*b=0.28*130<BR>\n" );
document.write( "a=130-b<BR>\n" );
document.write( "0.18*(130-b)+0.83*b=36.4<BR>\n" );
document.write( "23.4-0.18b+0.83*b=36.4<BR>\n" );
document.write( "0.65*b=13<BR>\n" );
document.write( "b=20<BR>\n" );
document.write( "a=130-b<BR>\n" );
document.write( "a=110 mL  of 18% b=20 mL of 83%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.18*110+0.83*20=0.28*130<BR>\n" );
document.write( "19.8+16.6=36.4<BR>\n" );
document.write( "36.4=36.4<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );