document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=351742>Question 351742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a nurse wishes to add water to 30 ounces of a 10% solution of benzalkonium chloride to dilute it to a 4% solution. How much water must she add?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #251377 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=251377\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi,<BR>\n" );
document.write( "*Note: .10*30oz tells us how much benzalkonium chloride is in that total solution<BR>\n" );
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document.write( ".10*30oz = 3oz  (there are 3 oz of benzalkonium chloride in that total solution)\r<BR>\n" );
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document.write( "Question speaks of making a new 4% solution<BR>\n" );
document.write( "Let x be the amount of that \"total\" solution<BR>\n" );
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document.write( ".04*x = 3oz  (the actual amount of benzalkonium chloride stays the same)<BR>\n" );
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document.write( "x = 3oz/.04 = 75oz<BR>\n" );
document.write( "As we already have 30z of \"total\" solution, 45oz of water will need to be added<BR>\n" );
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document.write( "check your answer<BR>\n" );
document.write( ".04*75oz = the 3 oz of benzalkonium chloride in the \"new total\" solution </SPAN>\n" );
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