document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=787091>Question 787091</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a chemist has two solutions of h2so4 one has a 40% concentration and the other has a 25% concentration how many liters of each solution must be mixed to obtain 62 liters of a 31% solution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #478080 by </B><A HREF=/tutors/aboutme.mpl?userid=wilft1><B>wilft1(217)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=wilft1><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=wilft1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=478080\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> separate the information\r<BR>\n" );
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document.write( "2 solutions, we'll call them x and y\r<BR>\n" );
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document.write( "x + y = 62 liters\r<BR>\n" );
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document.write( ".4x + .25y = .31% solution\r<BR>\n" );
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document.write( "multiply 62 liters by .31 percent solution\r<BR>\n" );
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document.write( ".4x + .25y = 19.22\r<BR>\n" );
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document.write( "lets get rid of the decimal points by moving them over...\r<BR>\n" );
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document.write( "x  +  y  = 62<BR>\n" );
document.write( "40x + 25y = 1922\r<BR>\n" );
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document.write( "now, lets do this using the subtraction method, multiply the top line by - 25<BR>\n" );
document.write( "then subtract to the bottom equation<BR>\n" );
document.write( "-25x - 26y = -1550<BR>\n" );
document.write( "40x + 26y = 1922\r<BR>\n" );
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document.write( "15x   = 372\r<BR>\n" );
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document.write( "divide both sides (of the bottom equation) by 15\r<BR>\n" );
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document.write( "x = 24.8 liters\r<BR>\n" );
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document.write( "now that we know what x is, we plug that into the original equation and find out what y is...\r<BR>\n" );
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document.write( "24.8 + y = 62\r<BR>\n" );
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document.write( "y = 37.2 liters\r<BR>\n" );
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document.write( "solution 40% solution will be 24.8 liters, 25% solution will be 37.2 liters\r<BR>\n" );
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document.write( "hope this helps :) </SPAN>\n" );
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