document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148235>Question 148235</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My car gets 12 miles per gallon of gasolene.  Gas is 4$/gallon.<BR>\n" );
document.write( "If I buy a car that gets 16 miles per gallon at a cost of $500, how long or how many miles will it take me to pay for it with savings of gas cost?\r<BR>\n" );
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document.write( "Help please,<BR>\n" );
document.write( "Bob </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108643 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=108643\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> My car gets 12 miles per gallon of gasoline. Gas is 4$/gallon.<BR>\n" );
document.write( "If I buy a car that gets 16 miles per gallon at a cost of $500, how long or how many miles will it take me to pay for it with savings of gas cost?<BR>\n" );
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document.write( "Let x = no. of miles to recover $500<BR>\n" );
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document.write( "Cost to drive old car: 4(x/12)<BR>\n" );
document.write( "Cost to drive new car: 4(x/16)<BR>\n" );
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document.write( "Old car cost - new car cost = $500<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284x%29%2F12 ALIGN=MIDDLE  ALT=\"%284x%29%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" > - <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284x%29%2F16 ALIGN=MIDDLE  ALT=\"%284x%29%2F16\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 500 <BR>\n" );
document.write( "Cancel the 4's<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F3 ALIGN=MIDDLE  ALT=\"x%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F4 ALIGN=MIDDLE  ALT=\"x%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 500<BR>\n" );
document.write( "Multiply equation by 12; gets rid of the denominator and you have<BR>\n" );
document.write( "4x - 3x = 12(500)<BR>\n" );
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document.write( "x = 6000 mi to recover the $500 spent (Lose the $ sign)<BR>\n" );
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document.write( "Check solution:<BR>\n" );
document.write( "4(6000/12) - 4(6000/16) =<BR>\n" );
document.write( " 2000 - 1500 = 500 \r<BR>\n" );
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document.write( "  </SPAN>\n" );
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