document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631713>Question 631713</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this mixture problem. Thanks! \r<BR>\n" );
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document.write( "Maricar has a solution that is 60% alcohol and another solution that is 60% alcohol. If maricar wants 12 gallons of a solution that is 45% alcohol, how many gallons of the 40% solution and of the 60% solution should be mix together to obtain her 45% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #399314 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=399314\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution A<BR>\n" );
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document.write( "Amount = x <BR>\n" );
document.write( "Concentration =40% =0.4\r<BR>\n" );
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document.write( "Solution B<BR>\n" );
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document.write( "Amount = 12-x <BR>\n" );
document.write( "Concentration =60% = 0.6\r<BR>\n" );
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document.write( "Mixture<BR>\n" );
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document.write( "Amount =12 <BR>\n" );
document.write( "Concentration =45%=0.45\r<BR>\n" );
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document.write( "[Amount Solution A * Concentration A] + [Amount Solution B * Concentration of B] = [Amount of Mixture *Concentration of Mixture]<BR>\n" );
document.write( "(x)(0.4)+(12-x)(0.6)=(12)(0.45)<BR>\n" );
document.write( "0.4x+7.2-0.6x=5.4<BR>\n" );
document.write( "-0.2x+7.2=5.4<BR>\n" );
document.write( "-0.2x=-1.8<BR>\n" );
document.write( "-0.2x/-0.2=-1.8/-0.2<BR>\n" );
document.write( "x=9\r<BR>\n" );
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document.write( "Solution A<BR>\n" );
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document.write( "Amount = x = 9 gallons<BR>\n" );
document.write( "Concentration =40% =0.4<BR>\n" );
document.write( "Solution B<BR>\n" );
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document.write( "Amount = 12-x = 12-9 = 3 gallons<BR>\n" );
document.write( "Concentration =60% = 0.6\r<BR>\n" );
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document.write( "9 gallons of the 40% solution and 3 gallons of the 60% solution should be mix together to obtain 12 gallons of 45% solution?\r<BR>\n" );
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