document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=980670>Question 980670</A>: <I><SPAN STYLE=\"word-break: break-all;\"> on a journey of 375 km , a motorist travels part of the journey on a expressway a 95 km/h and he rest at 65 km/h. the total time he spends on the stretch of road at 65 km/h is twice the time he spends on the expressway . how long did he take for thr whole journey? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #601785 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39627)</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=601785\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> __________________rate____________time____________distance<BR>\n" );
document.write( "expressway________95_______________t______________(____)<BR>\n" );
document.write( "regular___________65______________2t______________(____)<BR>\n" );
document.write( "Total_____________________________3t________________375\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "RT=D uniform rates travel relating rate, time, distance.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "__________________rate____________time____________distance<BR>\n" );
document.write( "expressway________95_______________t______________95t<BR>\n" );
document.write( "regular___________65______________2t______________65*2t<BR>\n" );
document.write( "Total_____________________________3t________________375\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Solve for t and evaluate 3t.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "----<BR>\n" );
document.write( "FURTHER STEPS WANTED FOR BETTER UNDERSTANDING\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The \"distance\" column shows the sum of terms for distance expressions, so this gives us the distance sum equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2895t%2B65%2A2%2At=375%29 ALIGN=MIDDLE  ALT=\"highlight_green%2895t%2B65%2A2%2At=375%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "This one equation uses only a single variable, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t ALIGN=MIDDLE  ALT=\"t\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Solve for t.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=95t%2B130t=375 ALIGN=MIDDLE  ALT=\"95t%2B130t=375\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=125t=375 ALIGN=MIDDLE  ALT=\"125t=375\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=375%2F125 ALIGN=MIDDLE  ALT=\"t=375%2F125\"   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%28t=3%29 ALIGN=MIDDLE  ALT=\"highlight_green%28t=3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, time in hours.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "THE TIME SUM Column shows that total time was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283t%29 ALIGN=MIDDLE  ALT=\"highlight%283t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Knowing <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=3 ALIGN=MIDDLE  ALT=\"t=3\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we can compute the total travel time, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2A3=highlight%289%2Ahours%29 ALIGN=MIDDLE  ALT=\"3%2A3=highlight%289%2Ahours%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Distances for each road type were also unknown, each based on the time t, which has now been found (solved).<BR>\n" );
document.write( "-<BR>\n" );
document.write( "Expressway,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=95%2At=95%2A3=highlight%28285%2Akilometers%29 ALIGN=MIDDLE  ALT=\"95%2At=95%2A3=highlight%28285%2Akilometers%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Regular road, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=65%2A2%2At=130%2At=130%2A3=highlight%28390%2Akilometers%29 ALIGN=MIDDLE  ALT=\"65%2A2%2At=130%2At=130%2A3=highlight%28390%2Akilometers%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );