document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=765002>Question 765002</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem as I don't understand how to solve mixture problems.\r<BR>\n" );
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document.write( "What quantity of 70 per cent acid solution must be mixed with a 25 solution to produce 972 mL of a 50 per cent solution?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #465886 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=465886\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem as I don't understand how to solve mixture problems. <BR>\n" );
document.write( "What quantity of 70 per cent acid solution must be mixed with a 25 solution to produce 972 mL of a 50 per cent solution?<BR>\n" );
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document.write( "let x=quantity (mL) of 70% solution to be mixed<BR>\n" );
document.write( "972-x=quantity (mL) of 25% solution to be mixed<BR>\n" );
document.write( "quantity of acid in the two solutions=quantity of acid in the mixture<BR>\n" );
document.write( "70%x+25%(972-x)=50%*972<BR>\n" );
document.write( ".70x+243-.25x=486<BR>\n" );
document.write( ".45x=243<BR>\n" );
document.write( "x=540<BR>\n" );
document.write( "972-x=432<BR>\n" );
document.write( "quantity (mL) of 70% solution to be mixed=540 mL<BR>\n" );
document.write( "quantity (mL) of 25% solution to be mixed=432 mL </SPAN>\n" );
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