document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=322241>Question 322241</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At Ed Gas, regular gas is $1.12 per gallon and ultra gas is $1.84 per gallon. If Ed Gas sold $128.80 worth of ultra, how many gallons of regular must be sold to have an average selling price of $1.518 per gallon? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230707 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230707\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At Ed Gas, regular gas is $1.12 per gallon<BR>\n" );
document.write( "ultra gas is $1.84 per gallon. $128.80 worth of ultra was sold,<BR>\n" );
document.write( "Let thenumber of gallons of regular to be sold be x to have an average selling price of $1.518 per gallon?<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Ultra  128.80 : price = 1.84/gallon<BR>\n" );
document.write( "Number of gallons of ultra = 128.80/1.84 = 70 gallons<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Value of regular + value of ultra / number of gallons = average price<BR>\n" );
document.write( "1.12x+128.80 /70+x= 1.518<BR>\n" );
document.write( "1.12x+128.80 =(70+x)* 1.518<BR>\n" );
document.write( "1.12x+128.80=1.518x+106.26<BR>\n" );
document.write( "1.518x-1.12x=106.26-128.80<BR>\n" );
document.write( "0.398x=22.54<BR>\n" );
document.write( "=56.63 gallons of regular has to be sold </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );