document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389296>Question 389296</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On Monday, Carlos drove to work in 35 minutes.   On Tuesday, he averaged 9 miles per hour more and arrived 7 minutes faster.   How far (in miles) does Carlos travel from home to work?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #275836 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=275836\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> On Monday, Carlos drove to work in 35 minutes.<BR>\n" );
document.write( " On Tuesday, he averaged 9 miles per hour more and arrived 7 minutes faster.<BR>\n" );
document.write( " How far (in miles) does Carlos travel from home to work? <BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let d = distance traveled to work<BR>\n" );
document.write( "Let s = average speed on monday<BR>\n" );
document.write( "then<BR>\n" );
document.write( "(s+9) = average speed on tuesday<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Write two time equations: time = dist/speed<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2Fs ALIGN=MIDDLE  ALT=\"d%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=35%2F60 ALIGN=MIDDLE  ALT=\"35%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "60d = 35s<BR>\n" );
document.write( "Simplify, divide by 5<BR>\n" );
document.write( "12d = 7s<BR>\n" );
document.write( "12d - 7s = 0<BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F%28%28s%2B9%29%29 ALIGN=MIDDLE  ALT=\"d%2F%28%28s%2B9%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=28%2F60 ALIGN=MIDDLE  ALT=\"28%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" >; (7min faster)<BR>\n" );
document.write( "Cross multiply <BR>\n" );
document.write( "60d = 28(s+9)<BR>\n" );
document.write( "60d = 28s + 252<BR>\n" );
document.write( "Simplify, divide by 4<BR>\n" );
document.write( "15d = 7s + 63<BR>\n" );
document.write( "15d - 7s = 63<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Subtract the 12d - 7s = 0 from the above equation<BR>\n" );
document.write( "15d - 7s = 63<BR>\n" );
document.write( "12d - 7s = 0<BR>\n" );
document.write( "----------------subtraction eliminates s, find d<BR>\n" );
document.write( "3d = 63<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=63%2F3 ALIGN=MIDDLE  ALT=\"63%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 21 miles is C's distance to work<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check this: find the the speed<BR>\n" );
document.write( "7s = 12(21)<BR>\n" );
document.write( "7s = 252<BR>\n" );
document.write( "s = 252/7<BR>\n" );
document.write( "s = 36 mph<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Find the times<BR>\n" );
document.write( "21/36 = .583 hrs<BR>\n" );
document.write( "21/45 = .467 hrs; (9 mph faster)<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "difer =  .116 hrs which is about 7 min<BR>\n" );
document.write( " </SPAN>\n" );
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