document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=736505>Question 736505</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a Kayaker traveled 20km/h into the current and 7/5 the speed with the current, What is the speed of the kayaker in still water and what is the speed of the current?\r<BR>\n" );
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document.write( "A motorcycle breaks down and the rider must walk the rest of the way to work. the motorcycle averaged 55mph, and the rider walks at the speed of 5mph. The distance from home to work is 100 miles, and the totale time for the trip was 4 hours. how far did the motorcycle rider walk? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #449955 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=449955\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  a Kayaker traveled 20km/h into the current and 7/5 the speed with the current,<BR>\n" );
document.write( " What is the speed of the kayaker in still water and<BR>\n" );
document.write( " what is the speed of the current?<BR>\n" );
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document.write( "Find 7/5 of the speed of 20 km/h<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F5 ALIGN=MIDDLE  ALT=\"7%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >*20 = 28 km/hr<BR>\n" );
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document.write( "let s = speed in still water<BR>\n" );
document.write( "let c = the rate of the current<BR>\n" );
document.write( "then write an equation for each way<BR>\n" );
document.write( "s + c = 28<BR>\n" );
document.write( "s - c = 20<BR>\n" );
document.write( "------------Addition eliminates c, find s<BR>\n" );
document.write( "2s = 48<BR>\n" );
document.write( "s = 48/2<BR>\n" );
document.write( "s = 24 km/h in still water<BR>\n" );
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document.write( "I'll let you find the current. <BR>\n" );
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document.write( "A motorcycle breaks down and the rider must walk the rest of the way to work.<BR>\n" );
document.write( " the motorcycle averaged 55mph, and the rider walks at the speed of 5mph.<BR>\n" );
document.write( " The distance from home to work is 100 miles, and the total time for the trip was 4 hours.<BR>\n" );
document.write( " how far did the motorcycle rider walk?<BR>\n" );
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document.write( "let w = distance walked<BR>\n" );
document.write( "the total distance is 100 mi, therefore:<BR>\n" );
document.write( "(100-w) = distance rode<BR>\n" );
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document.write( "Write a time equation time = dist/speed<BR>\n" );
document.write( "ride time + walk time = 4 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28100-w%29%29%2F55 ALIGN=MIDDLE  ALT=\"%28%28100-w%29%29%2F55\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=w%2F5 ALIGN=MIDDLE  ALT=\"w%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4<BR>\n" );
document.write( "Multiply by 55 to clear the denominators, resulting in:<BR>\n" );
document.write( "100 - w + 11w = 55(4) 10w = 220 - 100<BR>\n" );
document.write( "10w = 120<BR>\n" );
document.write( "w = 120/10<BR>\n" );
document.write( "w = 12 miles he walked!<BR>\n" );
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document.write( "You can check this by finding the actual times he walked and rode<BR>\n" );
document.write( "12/5 = <BR>\n" );
document.write( "88/55 =<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "total time ___<BR>\n" );
document.write( " </SPAN>\n" );
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