document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=401697>Question 401697</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A doctor prescribes an ointment that is 5% hydrocortisone. A pharmacist has 1% and 9% concentrations in stock. How many ounces of each should the pharmacist use to make a 1-ounce tube? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284310 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=284310\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=the amount of 1% that is required and 1-x the amount of 9% required.<BR>\n" );
document.write( ".01x+.09(1-x)=.05<BR>\n" );
document.write( ".01x+.09-.09x=.05<BR>\n" );
document.write( "-.08x+.09=.05<BR>\n" );
document.write( "-.08x=-.04<BR>\n" );
document.write( "x=.5 oz.<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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