document.write( "Question 1101416: Juan roller skates for 10 minutes with a
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\n" ); document.write( "\n" ); document.write( "How do I start thi problem please
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Algebra.Com's Answer #715982 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Juan roller skates for 10 minutes with a constant speed of 13 km/h and then for
\n" ); document.write( " another 1 hour with a constant speed of 17 km/h.
\n" ); document.write( " What is his average speed for the total trip?
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\n" ); document.write( "We want both the times in hrs; \"10%2F60\" = \"1%2F6\" or .167 hrs
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\n" ); document.write( "Find the total distance traveled dist = speed * time
\n" ); document.write( "13 * \"1%2F6\" = \"13%2F6\" = 2.167km
\n" ); document.write( "17 * 1 = 17 km
\n" ); document.write( "total distance 19.167 km
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\n" ); document.write( "Average speed = total dist/total time
\n" ); document.write( "total time = 1.167 hrs
\n" ); document.write( "\"19.167%2F1.167\" = 16.4 km/hr is the average speed
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