document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=600396>Question 600396</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many ml of 1.5% solution must be mixed with a 25% solution to prepare 1000ml of 6.5% solution? \r<BR>\n" );
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document.write( " please show your work so that i can learn how to solve the problem on my ptcb test this is an example only </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #379334 by </B><A HREF=/tutors/aboutme.mpl?userid=alicealc><B>alicealc(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=alicealc><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=379334\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let<BR>\n" );
document.write( "1.5% solution = x ml<BR>\n" );
document.write( "25% solution = (1000-x) ml\r<BR>\n" );
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document.write( "1.5/100 * x + 25/100 * (1000-x) = 6.5/100 * 1000<BR>\n" );
document.write( "0.015x + 0.25*(1000-x) = 65<BR>\n" );
document.write( "0.015x + 250 - 0.25x = 65<BR>\n" );
document.write( "250 - 65 = 0.25x - 0.015x<BR>\n" );
document.write( "185 = 0.235x<BR>\n" );
document.write( "x = 185/0.235 = 37/0.047 = 37000/47 ml\r<BR>\n" );
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document.write( "so 1.5% solution needed is 37000/47 ml\r<BR>\n" );
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