document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1111735>Question 1111735</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When carrying 15 gallons of fuel, the airplane weighs 2187 pounds. When carrying 35 gallons of fuel, it weighs 2303 pounds. How much does the airplane weigh if it is carrying 50 gallons of fuel? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #726737 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=726737\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x,y) for fuel x and plane weight y\r<BR>\n" );
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document.write( "Points from the description are (15, 2187) and (35, 2303).\r<BR>\n" );
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document.write( "Find y if x is 50.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282303-2187%29%2F%2835-15%29=116%2F20=5.8 ALIGN=MIDDLE  ALT=\"%282303-2187%29%2F%2835-15%29=116%2F20=5.8\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-2187=5.8%28x-15%29 ALIGN=MIDDLE  ALT=\"y-2187=5.8%28x-15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=5.8%28x-15%29%2B2187 ALIGN=MIDDLE  ALT=\"y=5.8%28x-15%29%2B2187\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=5.8x-87%2B2187 ALIGN=MIDDLE  ALT=\"y=5.8x-87%2B2187\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=5.8x%2B2100%29 ALIGN=MIDDLE  ALT=\"highlight%28y=5.8x%2B2100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now, let x=50 and find y. </SPAN>\n" );
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