document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=816029>Question 816029</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A gas station sells regular gas for $2.05 per gallon and premium gas for $2.75 a gallon. At the end of a business day 280 gallons of gas were sold, and receipts totaled $637. How many gallons of each type of gas were sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #491313 by </B><A HREF=/tutors/aboutme.mpl?userid=rfer><B>rfer(16322)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rfer><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=491313\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r+p=280<BR>\n" );
document.write( "r=280-p<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "2.05r+2.75p=637<BR>\n" );
document.write( "2.05(280-p)+2.75p=637<BR>\n" );
document.write( "574-2.05p+2.75p=637<BR>\n" );
document.write( "0.70p=637-574<BR>\n" );
document.write( "0.70p=63<BR>\n" );
document.write( "p=63/0.70<BR>\n" );
document.write( "p=90 gal premium<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "2.05r+2.75*90=637<BR>\n" );
document.write( "2.05r=637-247.5<BR>\n" );
document.write( "r=389.5/2.05<BR>\n" );
document.write( "r=190 gal regular </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );