document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=770732>Question 770732</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A family has two cars. The first car has a fuel efficiency of  25 miles per gallon of gas and the second has a fuel efficiency of 40  miles per gallon of gas. During one particular week, the two cars went a combined total of 2100  miles, for a total gas consumption of  60 gallons. How many gallons were consumed by each of the two cars that week? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #469719 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=469719\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = fuel consumed by the first car<BR>\n" );
document.write( "Let y = fuel consumed by the second car\r<BR>\n" );
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document.write( "Then:\r<BR>\n" );
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document.write( "x+y = 60<BR>\n" );
document.write( "25x+40y = 2100\r<BR>\n" );
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document.write( "Then:\r<BR>\n" );
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document.write( "25x+40(60-x)=2100\r<BR>\n" );
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document.write( "-15x+2400 = 2100\r<BR>\n" );
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document.write( "15x = 300\r<BR>\n" );
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document.write( "Answer:\r<BR>\n" );
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document.write( "x = 20<BR>\n" );
document.write( "y = 40\r<BR>\n" );
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document.write( "You can ask me more at: mthman@gmail.com\r<BR>\n" );
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document.write( "Thanks<BR>\n" );
document.write( " </SPAN>\n" );
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