document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=455819>Question 455819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jerry is experimenting with chemicals in the laboratory. He mixes a solution that is 10% acid with a solution that is 30% acid. How much of the 30% acid solution will be needed to make 40 liters of solution that is 25% acid? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #312915 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=312915\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> He mixes a solution that is 10% acid with a solution that is 30% acid. How much of the 30% acid solution will be needed to make 40 liters of solution that is 25% acid?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
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document.write( "0.10x + 0.30(40-x) = 0.25*40<BR>\n" );
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document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "10x + 30*40 - 30x = 25*40<BR>\n" );
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document.write( "-20x = -5*40<BR>\n" );
document.write( "x = 10 liters (amt. of 10% solution needed)<BR>\n" );
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document.write( "40-x = 30 liters (amt. of 30^ acid needed)<BR>\n" );
document.write( "============================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
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