document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=467408>Question 467408</A>: <I><SPAN STYLE=\"word-break: break-all;\"> aaron and jessica walk to the dock at 2 miles per hour,jumped into the boat, and motored to denver at 46 miles per hour. If the toatal distance was 21 miles and the trip took 5 hours in all, how far did they go by boat? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #320732 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=320732\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> aaron and jessica walk to the dock at 2 miles per hour,jumped into the boat,<BR>\n" );
document.write( " and motored to denver at 46 miles per hour. <BR>\n" );
document.write( "If the total distance was 21 miles, and the trip took 5 hours in all, how far did they go by boat?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let b = distance traveled by boat<BR>\n" );
document.write( "then, since the total dist was 21 mi, we can say:<BR>\n" );
document.write( "(21-b) = distance walked<BR>\n" );
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document.write( "Write a time equation, time = dist/speed<BR>\n" );
document.write( "walk time + boat travel time = 5 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2821-b%29%29%2F2 ALIGN=MIDDLE  ALT=\"%28%2821-b%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%2F46 ALIGN=MIDDLE  ALT=\"b%2F46\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 5<BR>\n" );
document.write( "we can clear the denominators by multiplying by 46, results:<BR>\n" );
document.write( "23(21-b) + b = 46(5)<BR>\n" );
document.write( "483 - 23b + b = 230<BR>\n" );
document.write( "-23b + b = 230 - 483<BR>\n" );
document.write( "-22b = -253<BR>\n" );
document.write( "b = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=253%2F22 ALIGN=MIDDLE  ALT=\"253%2F22\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b = 11.5 mi by boat<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check this, 21 - 11.5 = 9.5 mi walking<BR>\n" );
document.write( "Walk time: 9.5/2 = 4.75 hrs<BR>\n" );
document.write( "Boat time: 11.5/46 = .25 hrs<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "total travel time: 5 hrs </SPAN>\n" );
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