document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=859343>Question 859343</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how much pure acid should be mixed with 5 gallons of a 70% acidic solution in order to get a 90% acidic solution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #517698 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=517698\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how much pure acid should be mixed with 5 gallons of a 70% acidic solution in order to get a 90% acidic solution<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "1*x + 0.70*5 = 0.90(x+5)<BR>\n" );
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document.write( "100x + 70*5 = 90x + 90*5<BR>\n" );
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document.write( "10x = 20*5<BR>\n" );
document.write( "x = 10 gallons (amt. of 100% acid to add)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );