document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=370575>Question 370575</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Liz commutes 30 mi. to her job each day. She Finds that if she drives 10 mi/h faster it takes her 6 minutes less to get to work. Find her new speed.\r<BR>\n" );
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document.write( "I tried setting this problem up on a chart. For some reason when I worked the problem out I came out with really odd fractions, and I am not quite sure what I have done wrong. Any kind of help would truly mean a lot to me.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #264133 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=264133\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let r = original speed.\r<BR>\n" );
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document.write( "and let t = time to get to work driving that original speed.\r<BR>\n" );
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document.write( "So if \"Liz commutes 30 mi. to her job each day\", this means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=rt ALIGN=MIDDLE  ALT=\"30=rt\"   DISABLED_style= \"max-width:90%; height:auto;\" > because we're using the formula <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=rt ALIGN=MIDDLE  ALT=\"d=rt\"   DISABLED_style= \"max-width:90%; height:auto;\" > where the distance is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=30 ALIGN=MIDDLE  ALT=\"d=30\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the first equation is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=rt ALIGN=MIDDLE  ALT=\"30=rt\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "In addition, because \"she drives 10 mi/h faster it takes her 6 minutes less to get to work\", we can say that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=%28r%2B10%29%28t-1%2F10%29 ALIGN=MIDDLE  ALT=\"30=%28r%2B10%29%28t-1%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Notes: since she drives 10 mph faster, her new speed is r+10. Also, because 60 min = 1 hour, this means that 6 min = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F60=1%2F10 ALIGN=MIDDLE  ALT=\"6%2F60=1%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours. So if it takes 6 mins or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F10 ALIGN=MIDDLE  ALT=\"1%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" > or an hour less, then the new time is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t-1%2F10 ALIGN=MIDDLE  ALT=\"t-1%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So the second equation is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=%28r%2B10%29%28t-1%2F10%29 ALIGN=MIDDLE  ALT=\"30=%28r%2B10%29%28t-1%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "-----------------------------------------------------------\r<BR>\n" );
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document.write( "Now let's use both equations to solve for t and r\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=rt ALIGN=MIDDLE  ALT=\"30=rt\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the first equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2Ft=r ALIGN=MIDDLE  ALT=\"30%2Ft=r\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by t to isolate r.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=30%2Ft ALIGN=MIDDLE  ALT=\"r=30%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > Flip the equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=%28r%2B10%29%28t-1%2F10%29 ALIGN=MIDDLE  ALT=\"30=%28r%2B10%29%28t-1%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Move onto the second equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=%2830%2Ft%2B10%29%28t-1%2F10%29 ALIGN=MIDDLE  ALT=\"30=%2830%2Ft%2B10%29%28t-1%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=30%2Ft ALIGN=MIDDLE  ALT=\"r=30%2Ft\"   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=30=%2830%2Ft%2B10t%2Ft%29%28t-1%2F10%29 ALIGN=MIDDLE  ALT=\"30=%2830%2Ft%2B10t%2Ft%29%28t-1%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply 10 by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2Ft ALIGN=MIDDLE  ALT=\"t%2Ft\"   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=30=%28%2830%2B10t%29%2Ft%29%28t-1%2F10%29 ALIGN=MIDDLE  ALT=\"30=%28%2830%2B10t%29%2Ft%29%28t-1%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine the fractions.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=%28%2830%2B10t%29%2Ft%29%28t%29-%28%2830%2B10t%29%2Ft%29%281%2F10%29 ALIGN=MIDDLE  ALT=\"30=%28%2830%2B10t%29%2Ft%29%28t%29-%28%2830%2B10t%29%2Ft%29%281%2F10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Distribute\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30=30%2B10t-%283%2Bt%29%2Ft ALIGN=MIDDLE  ALT=\"30=30%2B10t-%283%2Bt%29%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply.\r<BR>\n" );
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document.write( "Note: the 't' terms cancel in the first fraction while in the second, we're dividing each term by 10.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30t=30t%2B10t%5E2-%283%2Bt%29 ALIGN=MIDDLE  ALT=\"30t=30t%2B10t%5E2-%283%2Bt%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply EVERY term by the LCD 't' to clear out the fractions.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30t=30t%2B10t%5E2-3-t ALIGN=MIDDLE  ALT=\"30t=30t%2B10t%5E2-3-t\"   DISABLED_style= \"max-width:90%; height:auto;\" > Distribute.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=30t%2B10t%5E2-3-t-30t ALIGN=MIDDLE  ALT=\"0=30t%2B10t%5E2-3-t-30t\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 30t from both sides.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=10t%5E2-t-3 ALIGN=MIDDLE  ALT=\"0=10t%5E2-t-3\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms.\r<BR>\n" );
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document.write( "Notice that the quadratic <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10t%5E2-t-3 ALIGN=MIDDLE  ALT=\"10t%5E2-t-3\"   DISABLED_style= \"max-width:90%; height:auto;\" > is in the form of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=At%5E2%2BBt%2BC ALIGN=MIDDLE  ALT=\"At%5E2%2BBt%2BC\"   DISABLED_style= \"max-width:90%; height:auto;\" > where <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=10 ALIGN=MIDDLE  ALT=\"A=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B=-1 ALIGN=MIDDLE  ALT=\"B=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=-3 ALIGN=MIDDLE  ALT=\"C=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Let's use the quadratic formula to solve for \"t\":\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+%28-B+%2B-+sqrt%28+B%5E2-4AC+%29%29%2F%282A%29 ALIGN=MIDDLE  ALT=\"t+=+%28-B+%2B-+sqrt%28+B%5E2-4AC+%29%29%2F%282A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the quadratic formula\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+%28-%28-1%29+%2B-+sqrt%28+%28-1%29%5E2-4%2810%29%28-3%29+%29%29%2F%282%2810%29%29 ALIGN=MIDDLE  ALT=\"t+=+%28-%28-1%29+%2B-+sqrt%28+%28-1%29%5E2-4%2810%29%28-3%29+%29%29%2F%282%2810%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=10 ALIGN=MIDDLE  ALT=\"A=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B=-1 ALIGN=MIDDLE  ALT=\"B=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=-3 ALIGN=MIDDLE  ALT=\"C=-3\"   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=t+=+%281+%2B-+sqrt%28+%28-1%29%5E2-4%2810%29%28-3%29+%29%29%2F%282%2810%29%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+sqrt%28+%28-1%29%5E2-4%2810%29%28-3%29+%29%29%2F%282%2810%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Negate <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1 ALIGN=MIDDLE  ALT=\"-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   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=t+=+%281+%2B-+sqrt%28+1-4%2810%29%28-3%29+%29%29%2F%282%2810%29%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+sqrt%28+1-4%2810%29%28-3%29+%29%29%2F%282%2810%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Square <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1 ALIGN=MIDDLE  ALT=\"-1\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   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=t+=+%281+%2B-+sqrt%28+1--120+%29%29%2F%282%2810%29%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+sqrt%28+1--120+%29%29%2F%282%2810%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2810%29%28-3%29 ALIGN=MIDDLE  ALT=\"4%2810%29%28-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-120 ALIGN=MIDDLE  ALT=\"-120\"   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=t+=+%281+%2B-+sqrt%28+1%2B120+%29%29%2F%282%2810%29%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+sqrt%28+1%2B120+%29%29%2F%282%2810%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Rewrite <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%281--120%29 ALIGN=MIDDLE  ALT=\"sqrt%281--120%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%281%2B120%29 ALIGN=MIDDLE  ALT=\"sqrt%281%2B120%29\"   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=t+=+%281+%2B-+sqrt%28+121+%29%29%2F%282%2810%29%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+sqrt%28+121+%29%29%2F%282%2810%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Add <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   DISABLED_style= \"max-width:90%; height:auto;\" > to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=120 ALIGN=MIDDLE  ALT=\"120\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=121 ALIGN=MIDDLE  ALT=\"121\"   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=t+=+%281+%2B-+sqrt%28+121+%29%29%2F%2820%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+sqrt%28+121+%29%29%2F%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2 ALIGN=MIDDLE  ALT=\"2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10 ALIGN=MIDDLE  ALT=\"10\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20 ALIGN=MIDDLE  ALT=\"20\"   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=t+=+%281+%2B-+11%29%2F%2820%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B-+11%29%2F%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Take the square root of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=121 ALIGN=MIDDLE  ALT=\"121\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11 ALIGN=MIDDLE  ALT=\"11\"   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=t+=+%281+%2B+11%29%2F%2820%29 ALIGN=MIDDLE  ALT=\"t+=+%281+%2B+11%29%2F%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+%281+-+11%29%2F%2820%29 ALIGN=MIDDLE  ALT=\"t+=+%281+-+11%29%2F%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Break up the expression. \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+%2812%29%2F%2820%29 ALIGN=MIDDLE  ALT=\"t+=+%2812%29%2F%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=++%28-10%29%2F%2820%29 ALIGN=MIDDLE  ALT=\"t+=++%28-10%29%2F%2820%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms. \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+3%2F5 ALIGN=MIDDLE  ALT=\"t+=+3%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+-1%2F2 ALIGN=MIDDLE  ALT=\"t+=+-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Simplify. \r<BR>\n" );
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document.write( "So the possible solutions are <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+3%2F5 ALIGN=MIDDLE  ALT=\"t+=+3%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+-1%2F2 ALIGN=MIDDLE  ALT=\"t+=+-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "However, since a negative time isn't possible, this means that the only solution for 't' is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=3%2F5 ALIGN=MIDDLE  ALT=\"t=3%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Remember that 't' is the time in hours. So convert to minutes to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2F5%29%2A%2860%29+=+180%2F5+=+36 ALIGN=MIDDLE  ALT=\"%283%2F5%29%2A%2860%29+=+180%2F5+=+36\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes\r<BR>\n" );
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document.write( "So the time it takes to travel 30 miles at the original speed is 36 minutes.\r<BR>\n" );
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document.write( "Recall that we made <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=30%2Ft ALIGN=MIDDLE  ALT=\"r=30%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" >. So plug <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=3%2F5 ALIGN=MIDDLE  ALT=\"t=3%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > into the equation to get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=30%2F%283%2F5%29=%2830%2F1%29%285%2F3%29=150%2F3=50 ALIGN=MIDDLE  ALT=\"r=30%2F%283%2F5%29=%2830%2F1%29%285%2F3%29=150%2F3=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So her original speed is 50 mph. Add 10 mph to this speed to get 50+10 = 60 mph\r<BR>\n" );
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document.write( "So her new speed is 60 mph.\r<BR>\n" );
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document.write( "I'll leave the check to you. Remember to use the formula <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=rt ALIGN=MIDDLE  ALT=\"d=rt\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "If you need more help, email me at <a  rel=nofollow HREF=\"mailto:jim_thompson5910@hotmail.com?Subject=Algebra%20Help\">jim_thompson5910@hotmail.com</a>\r<BR>\n" );
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document.write( "Also, feel free to check out my <a  rel=nofollow HREF=\"http://www.freewebs.com/jimthompson5910/home.html\">tutoring website</a>\r<BR>\n" );
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document.write( "Jim </SPAN>\n" );
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