document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167370>Question 167370</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A forester mixes gasoline and oil to make 2 gallons of mixture for his two-cycle chain-saw engine. This mixture is 32 parts gasoline and 1 part two-cycle oil. How much gasoline must be added to bring the mixture to 40 part gasoline and 1 part oil?\r<BR>\n" );
document.write( "\n" );
document.write( "I tried to make a chart to list everything I knew from the problem and see how I could solve it, but I'm not sure where to start from. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123292 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=123292\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=amount of gas that needs to be added\r<BR>\n" );
document.write( "\n" );
document.write( "Now we know that the amount of oil in the 32-1 mixture is the same as the amount of oil in the 40-1 mixture (since we neither add or take away any oil); so:<BR>\n" );
document.write( "2*(1/32)=1/40(2+x) get rid of parens<BR>\n" );
document.write( "1/16=1/20 + x/40  (LCD=80) multiply each term by 80<BR>\n" );
document.write( "5=4+2x  subtract 4 from each side<BR>\n" );
document.write( "5-4=2x  divide by 2<BR>\n" );
document.write( "x=1/2 gal amount of gas that needs to be added\r<BR>\n" );
document.write( "\n" );
document.write( "CK<BR>\n" );
document.write( "(1/32)*2=(1/40)*2.5<BR>\n" );
document.write( "1/16=1/16\r<BR>\n" );
document.write( "\n" );
document.write( "Hope this helps------ptaylor </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );