document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=667423>Question 667423</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% oxygen? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #415021 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=415021\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many gallons of rocket fuel containing 80% liquid oxygen must be mixed with 250 gallons containing 40% liquid oxygen to produce a mixture containing 70% oxygen?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "ox + ox = ox<BR>\n" );
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document.write( "0.80x + 0.40*250 = 0.70(x+250)<BR>\n" );
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document.write( "80x + 40*250 = 70x + 70*250<BR>\n" );
document.write( "10x = 30*250<BR>\n" );
document.write( "x = (1/3)(250)<BR>\n" );
document.write( "x = 83 1/3 (amt of 80% liq ox needed)<BR>\n" );
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document.write( "Cheers<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );