document.write( "Question 159534: A family makes a 43.25 km trip in 5.5 hours. On the first part of the trip they crossed a lake in a canoe paddling at 12km/h. For the rest of the trip,they hiked on a scenic trail. If their average walking speed was 5km/h how far did they walk? \n" ); document.write( "
Algebra.Com's Answer #117643 by jojo14344(1513)\"\" \"About 
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\n" ); document.write( "Remember: \"Speed=distance%2Ftime\" ---> \"S=d%2Ft\", BASIC EQN
\n" ); document.write( "\"S%5B1%5D=12km%2Fhr\", canoe paddling
\n" ); document.write( "\"S%5B2%5D=5km%2Fhr\", hike in scenic trail (walking)
\n" ); document.write( "Other points to remember: \"distance=d=43.25km\", \"t=5.5hrs\"
\n" ); document.write( "In BASIC EQN we get, \"t=d%2FS\", working eqn
\n" ); document.write( "Also, \"t%5B1%5D%2Bt%5B2%5D=t\". Make sense, time in canoe paddling + time hiking = total time in the trip.
\n" ); document.write( "Then as per working eqn,
\n" ); document.write( "\"d%5B1%5D%2FS%5B1%5D%2Bd%5B2%5D%2FS%5B2%5D=5.5hrs\" ----------------> eqn 1
\n" ); document.write( "But remember too, \"d%5B1%5D%2Bd%5B2%5D=43.25km\" distance in canoe paddling + distance in hiking = total distance in trip ---> \"d%5B1%5D=43.25-d%5B2%5D\",subst, in eqn 1
\n" ); document.write( "\"43.25-d%5B2%5D%2F12%2Bd%5B2%5D%2F5=5.5\"
\n" ); document.write( "\"5%2843.25-d%5B2%5D%2B12d%5B2%5D%29%2F60=5.5\"
\n" ); document.write( "\"%28216.25-5d%5B2%5D%2B12d%5B2%5D%29%2F60=5.5\", cross multiply
\n" ); document.write( "\"12d%5B2%5D-5d%5B2%5D=330-216.25\"
\n" ); document.write( "\"7d%5B2%5D=113.75\"
\n" ); document.write( "\"cross%287%29d%5B2%5D%2Fcross%287%29=cross%28113.75%2916.25%2Fcross%287%29\"
\n" ); document.write( "\"d%5B2%5D=16.25km\" --------------------> distance travelled in walking
\n" ); document.write( "\"d%5B1%5D=43.25-16.25=27km\" -----------> distance travelled in canoe paddling
\n" ); document.write( "In doubt? Go back eqn 1,
\n" ); document.write( "
\n" ); document.write( "\"2.25hrs%2B3.25hrs=5.5hrs\"
\n" ); document.write( "\"5.5hrs=5.5hrs\"
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
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