document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205607>Question 205607</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395461405/algebrahomeworkh>Algebra structure and method</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Cindy and Dave left the dock to canoe downstream. Fifteen minutes later Tammy left by otorboat with the supplies. Since the motorboat traveled twice as fast as the anoe, it caught up with the canoe 3km from the dock. What was the speed of the motorboat? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155266 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=155266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Cindy and Dave left the dock to canoe downstream. Fifteen minutes later Tammy<BR>\n" );
document.write( " left by motorboat with the supplies.<BR>\n" );
document.write( "Since the motorboat traveled twice as fast as the canoe, it caught up with the<BR>\n" );
document.write( " canoe 3km from the dock. <BR>\n" );
document.write( "What was the speed of the motorboat?<BR>\n" );
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document.write( "Speed will be in km/hr; change 15 min to .25 hrs<BR>\n" );
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document.write( "Let s = the motor boat speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( ".5s = speed of the canoe)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Write time equation: (time = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dist%2Fspeed ALIGN=MIDDLE  ALT=\"dist%2Fspeed\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "Motor time + 15 min = Canoe time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2Fs ALIGN=MIDDLE  ALT=\"3%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > + .25 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F%28.5s%29 ALIGN=MIDDLE  ALT=\"3%2F%28.5s%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply equation by s, results<BR>\n" );
document.write( "3 + .25s = 2(3)<BR>\n" );
document.write( ";<BR>\n" );
document.write( "3 + .25s = 6<BR>\n" );
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document.write( ".25s = 6 - 3<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F.25 ALIGN=MIDDLE  ALT=\"3%2F.25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 12 km/h motorboat speed<BR>\n" );
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document.write( "Check solution, find the travel times<BR>\n" );
document.write( "3/6 = .5 hrs<BR>\n" );
document.write( "3/12= .25 hrs<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "diff = .25 hrs (15 min)\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );