document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=791374>Question 791374</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of 5% acid solution should be mixed with 20 gallons of a 10% acid solution to obtain an 8% acid solution? Please show work.  </SPAN>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "0.10*20 + 0.05x = 0.08(20+x)<BR>\n" );
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document.write( "10*20 + 5x = 8*20 + 8x<BR>\n" );
document.write( "-3x = -2*20<BR>\n" );
document.write( "x = (2/3)20<BR>\n" );
document.write( "x = 13 1/3 gallons (amt. of 5% solution needed)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " <BR>\n" );
document.write( " </SPAN>\n" );
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