document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=314635>Question 314635</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 4.at the beginning of a walk, bill and nancy are 8.8 miles apart. it they oleave at the same time and walk in the same direction,  bill  overtakes nancy in 11 hours. if they walk towards each other they meet in 1 hour. what are their speeds?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #225118 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=225118\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4.at the beginning of a walk, bill and nancy are 8.8 miles apart. <BR>\n" );
document.write( "if they leave at the same time and walk in the same direction, bill overtakes nancy in 11 hours.<BR>\n" );
document.write( " if they walk towards each other they meet in 1 hour. what are their speeds?:<BR>\n" );
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document.write( "let b = Bill's walking speed<BR>\n" );
document.write( "let n = Nancy's walking speed<BR>\n" );
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document.write( "walking the same direction they're effective speed is the difference<BR>\n" );
document.write( "walking towards each other they're effective speed is the sum<BR>\n" );
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document.write( "\"Same direction\" equation<BR>\n" );
document.write( "Write a time equation: Time = dist/speed<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8.8%2F%28%28b-n%29%29 ALIGN=MIDDLE  ALT=\"8.8%2F%28%28b-n%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 11<BR>\n" );
document.write( "8.8 = 11(b-n)<BR>\n" );
document.write( "8.8 = 11b - 11n<BR>\n" );
document.write( "Simplify, divide by 11<BR>\n" );
document.write( ".8 = b - n<BR>\n" );
document.write( "Or<BR>\n" );
document.write( "b - n = .8<BR>\n" );
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document.write( "\"Toward equation\"<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8.8%2F%28%28b%2Bn%29%29 ALIGN=MIDDLE  ALT=\"8.8%2F%28%28b%2Bn%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1<BR>\n" );
document.write( "8.8 = 1(b + n)<BR>\n" );
document.write( "b + n = 8.8<BR>\n" );
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document.write( "Use elimination<BR>\n" );
document.write( "b - n = .8<BR>\n" );
document.write( "b + n = 8.8<BR>\n" );
document.write( "---------------addition eliminates n, find b<BR>\n" );
document.write( "2b = 9.6<BR>\n" );
document.write( "b = 4.8 mph is Bill's walking speed<BR>\n" );
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document.write( "Find n<BR>\n" );
document.write( "4.8 + n = 8.8<BR>\n" );
document.write( "n = 8.8 - 4.8<BR>\n" );
document.write( "n = 4 mph is Nancy's walking speed<BR>\n" );
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