document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=775449>Question 775449</A>: <I><SPAN STYLE=\"word-break: break-all;\"> \"A pharmacist combined some 10% saline solution with some 15% saline solution to produce 100 ml of a 12% solution. How much of the 10% solution did the pharmacist use?\" Need help on percentage, please and thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #472892 by </B><A HREF=/tutors/aboutme.mpl?userid=sofiyac><B>sofiyac(983)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sofiyac><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=sofiyac><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=472892\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> lets say we take x ml of 10% solution, since total ml is 100 then we have 100-x of 15% solution, so<BR>\n" );
document.write( "10x+15(100-x)=(100)(12)<BR>\n" );
document.write( "10x+1500-15x=1200<BR>\n" );
document.write( "-5x+1500=1200 subtract 1500 from each side<BR>\n" );
document.write( "-5x=-300 divide each side by -5<BR>\n" );
document.write( "x=60 so we need 60 ml of 10% and 100-60=40ml of 15% </SPAN>\n" );
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