document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=680392>Question 680392</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist needs 45 liters of 35% acid solution.<BR>\n" );
document.write( "She has containers of 20% solution and 75% solution.<BR>\n" );
document.write( "She needs to combine liters of 20% solution and liters of 75% solution to have 45 liters of 35% acid solution.<BR>\n" );
document.write( "Round each value to one decimal place. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #422315 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=422315\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> chemist needs 45 liters of 35% acid solution.<BR>\n" );
document.write( "She has containers of 20% solution and 75% solution.<BR>\n" );
document.write( "She needs to combine liters of 20% solution and liters of 75% solution to have 45 liters of 35% acid solution.<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "0.20x + 0.75(45-x) = 0.35(45)<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "20x + 75*45 - 75x = 35*45<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "-55x = -40*45<BR>\n" );
document.write( "x = (8/11)45<BR>\n" );
document.write( "x = 32.73 liters (amt. of 20% solution needed)<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "45-x = 12.27 liters (amt. of 75% solution needed)<BR>\n" );
document.write( "===================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===============<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );