document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=590248>Question 590248</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Richard used his kayak and rows upstream at the rate of 3 kph and rows back downstream at the rate of 21 kph. If the complete trip requires 30 minutes. Find the total distance Richard rowed.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #375215 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=375215\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Richard used his kayak and rows upstream at the rate of 3 kph and rows back downstream at the rate of 21 kph. If the complete trip requires 30 minutes. Find the total distance Richard rowed. <BR>\n" );
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document.write( "Let d = one-way distance rowed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "2d = total distance<BR>\n" );
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document.write( "Change 30 min to .5 hrs<BR>\n" );
document.write( ":<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=d%2F3 ALIGN=MIDDLE  ALT=\"d%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F21 ALIGN=MIDDLE  ALT=\"d%2F21\"   DISABLED_style= \"max-width:90%; height:auto;\" > = .5<BR>\n" );
document.write( "multiply by 21<BR>\n" );
document.write( "21*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F3 ALIGN=MIDDLE  ALT=\"d%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 21*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F21 ALIGN=MIDDLE  ALT=\"d%2F21\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 21*.5<BR>\n" );
document.write( "cancel the denominators<BR>\n" );
document.write( "7d + d = 10.5<BR>\n" );
document.write( "8d = 10.5<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10.5%2F8 ALIGN=MIDDLE  ALT=\"10.5%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 1.3125 km one way<BR>\n" );
document.write( "then<BR>\n" );
document.write( "2 * 1.3125 = 2.625 km total distance<BR>\n" );
document.write( ";<BR>\n" );
document.write( ":<BR>\n" );
document.write( "See if this checks out find the time each way<BR>\n" );
document.write( "1.3125/3 = .4375 hrs<BR>\n" );
document.write( "1.3125/21= .0625 hrs<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "total time;.5 hrs; confirms our solution of 2.625 km total </SPAN>\n" );
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