document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159493>Question 159493</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of pure alcohol need to be added to seven liters of 21% alcohol solution to produce a mixture which is 44.7% alcohol? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117651 by </B><A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><B>KnightOwlTutor(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><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=KnightOwlTutor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=117651\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X= number of Liters of pure alcohol needed \r<BR>\n" );
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document.write( "Convert the % to decimal format ie 21%=.21<BR>\n" );
document.write( "Pure alcohol is 100% decimal format is 1\r<BR>\n" );
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document.write( "The algebraic equation for this is:\r<BR>\n" );
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document.write( "X+7(.21)=.447(7+X)\r<BR>\n" );
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document.write( "The total volume on both sides of the equation must be the same.\r<BR>\n" );
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document.write( "Use the distributive property to get\r<BR>\n" );
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document.write( "X+1.47=3.129+.447X\r<BR>\n" );
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document.write( "Subtract .447 from both sides<BR>\n" );
document.write( "Subtract 1.47 from both sides\r<BR>\n" );
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document.write( "0.553X=1.654<BR>\n" );
document.write( "X=3 Liters of pure alcohol<BR>\n" );
document.write( "To confirm plug in 3 for the variable X in the algebraic equation. </SPAN>\n" );
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