document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=166588>Question 166588</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You need 880 mL of a 75% alcohol solution. On hand, you have a 20% alcohol mixture. How much of the 20% alcohol mixture and pure alcohol will you need to obtain the desired solution?\r<BR>\n" );
document.write( "\n" );
document.write( "You will need <BR>\n" );
document.write( " mL of the 20% solution<BR>\n" );
document.write( "and <BR>\n" );
document.write( " mL of pure alcohol. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122778 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=122778\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You need 880 mL of a 75% alcohol solution. On hand, you have a 20% alcohol mixture. How much of the 20% alcohol mixture and pure alcohol will you need to obtain the desired solution? <BR>\n" );
document.write( "--------------------------------------<BR>\n" );
document.write( "alcohol + alcohol = alcohol<BR>\n" );
document.write( "0.20x + 1(880-x) = 0.75*880<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "20x + 100*880 -100x = 75*880<BR>\n" );
document.write( "-80x = - -20*880<BR>\n" );
document.write( "x = 220 mml ( amt. of pure alcohol needed for the mixture)<BR>\n" );
document.write( "880-220 = 660mml ( amt. of 20% solution you need for the mixture)<BR>\n" );
document.write( "===========<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );