document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1001317>Question 1001317</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jim's car gets 26 miles per gallon on the highway and 18 miles per gallon in city traffic. He has 22 gallons of gasoline in his tank and is going on a trip.\r<BR>\n" );
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document.write( "a. Write and expression for the amount of gas Jim uses driving (h) highway miles and (c) city traffic miles.\r<BR>\n" );
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document.write( "b. Can Jim make a 480 mile trip consisting of 90 miles of city traffic without buying more gas? Explain your reasoning. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618578 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39616)</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=618578\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> RV=D  relates fuel efficiency ( a rate ) with fuel volume and distance.  This is a basic uniform rates situation.\r<BR>\n" );
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document.write( "If variables are c for miles in city driving, and h for miles in highway driving then you may arrange rv=c  for city driving at rate r, and Rv=h  for highway driving at rate R.\r<BR>\n" );
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document.write( "DATA TABLE USING VALUES DESCRIBED AND VARIABLES STILL NEEDED<BR>\n" );
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document.write( "             rate         volume(gallons)       distance (miles)\r\n" );
document.write( "HIGHWAY      26              h/26                     h\r\n" );
document.write( "CITY         18              c/18                     c\r\n" );
document.write( "Total                         22\r\n" );
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document.write( "This gives a formula for volume of fuel used if h and c are both known.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2F26%2Bc%2F18=22 ALIGN=MIDDLE  ALT=\"h%2F26%2Bc%2F18=22\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Question (b):<BR>\n" );
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document.write( "              rate           volume           distance\r\n" );
document.write( "HWY            26             h/26              h\r\n" );
document.write( "CTY            18             90/18              90\r\n" );
document.write( "Total                          22              480\r\n" );
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document.write( "Make the obvious equations and see if they make sense together or what more the results mean.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2F26%2B90%2F18=22 ALIGN=MIDDLE  ALT=\"h%2F26%2B90%2F18=22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2F26%2B5=22 ALIGN=MIDDLE  ALT=\"h%2F26%2B5=22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2F26=17 ALIGN=MIDDLE  ALT=\"h%2F26=17\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=17%2A26 ALIGN=MIDDLE  ALT=\"h=17%2A26\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28h=442%29 ALIGN=MIDDLE  ALT=\"highlight_green%28h=442%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >--------the amount of highway distance possible.  If you look at the sum <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2B90 ALIGN=MIDDLE  ALT=\"h%2B90\"   DISABLED_style= \"max-width:90%; height:auto;\" >, as if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%2B90%3E=480 ALIGN=MIDDLE  ALT=\"h%2B90%3E=480\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Is it true or not?<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=442%2B90%3E=480 ALIGN=MIDDLE  ALT=\"442%2B90%3E=480\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=532%3E=480 ALIGN=MIDDLE  ALT=\"532%3E=480\"   DISABLED_style= \"max-width:90%; height:auto;\" >---------certainly this is true. \r<BR>\n" );
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document.write( "Enough fuel, yes, for the 480 mile trip which includes 90 miles in the city. </SPAN>\n" );
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