document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=157341>Question 157341</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sara can walk the length of the sidewalk in 8 minutes if it is not moving. If she stands on the sidewalk as it moves, she can travel the length in 6 minutes. If Sara walks on the sidewalk as it moves,how many minutes will it takes her to travel the same distance? Assume she always at the same rate, and express the answer as a decimal.<BR>\n" );
document.write( "              Could you please explain this , please? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115991 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=115991\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The solution is to add two rates:<BR>\n" );
document.write( "(1) Sarah's rate of walking<BR>\n" );
document.write( "(2) The sidewalk's rate of moving<BR>\n" );
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document.write( "Added together, these rates equal <BR>\n" );
document.write( "the rate of Sarah walking on the <BR>\n" );
document.write( "moving sidewalk.<BR>\n" );
document.write( "Call the length in the problem<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L ALIGN=MIDDLE  ALT=\"L\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Sarah's rate of walking = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2F8 ALIGN=MIDDLE  ALT=\"L%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" > length/min<BR>\n" );
document.write( "Sidewalk's rate of moving = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2F6 ALIGN=MIDDLE  ALT=\"L%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > length/min<BR>\n" );
document.write( "Added together: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2F8+%2B+L%2F6 ALIGN=MIDDLE  ALT=\"L%2F8+%2B+L%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t ALIGN=MIDDLE  ALT=\"t\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of minutes for Sarah to<BR>\n" );
document.write( "travel length <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L ALIGN=MIDDLE  ALT=\"L\"   DISABLED_style= \"max-width:90%; height:auto;\" > when sidewalk is moving<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%2F8+%2B+L%2F6+=+L%2Ft ALIGN=MIDDLE  ALT=\"L%2F8+%2B+L%2F6+=+L%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Notice I can divide both sides of this equation<BR>\n" );
document.write( "by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L ALIGN=MIDDLE  ALT=\"L\"   DISABLED_style= \"max-width:90%; height:auto;\" >, resulting in:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F8+%2B+1%2F6+=+1%2Ft ALIGN=MIDDLE  ALT=\"1%2F8+%2B+1%2F6+=+1%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24t ALIGN=MIDDLE  ALT=\"24t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3t+%2B+4t+=+24 ALIGN=MIDDLE  ALT=\"3t+%2B+4t+=+24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7t+=+24 ALIGN=MIDDLE  ALT=\"7t+=+24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+3.429 ALIGN=MIDDLE  ALT=\"t+=+3.429\"   DISABLED_style= \"max-width:90%; height:auto;\" > min\r<BR>\n" );
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document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );