document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=10331>Question 10331</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much water should be added to 20 ounces of a 15% solution of alcohol to dilute it to a 10% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #5503 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=5503\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Here's one approach.\r<BR>\n" );
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document.write( "20 ounces (oz) of a 15% alcohol solution has 85% water.  <BR>\n" );
document.write( "The 10% alcohol solution has 90% water. You need to add x ounces (oz) of 100% water.<BR>\n" );
document.write( "Change percents to decimals.\r<BR>\n" );
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document.write( "20 oz(.85) + x oz(1.0) = (20+x)oz(0.9) Simplify and solve for x.<BR>\n" );
document.write( "17 + x = 18 + 0.9x Subtract 0.9x from both sides.<BR>\n" );
document.write( "17 + 0.1x = 18 Subtract 17 from both sides.<BR>\n" );
document.write( "0.1x = 1 Divide both sides by 0.1<BR>\n" );
document.write( "x = 10\r<BR>\n" );
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document.write( "Add 10 oz of water.  </SPAN>\n" );
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