document.write( "Question 1101416: Juan roller skates for 10 minutes with a
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document.write( "constant speed of 13 km/h and then for
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document.write( "another 1 hour with a constant speed of
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document.write( "17 km/h. What is his average speed for
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document.write( "the total trip?\r
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document.write( "How do I start thi problem please \n" );
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Algebra.Com's Answer #715982 by ankor@dixie-net.com(22740) 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? \n" ); document.write( ": \n" ); document.write( "We want both the times in hrs; \n" ); document.write( ": \n" ); document.write( "Find the total distance traveled dist = speed * time \n" ); document.write( "13 * \n" ); document.write( "17 * 1 = 17 km \n" ); document.write( "total distance 19.167 km \n" ); document.write( ": \n" ); document.write( "Average speed = total dist/total time \n" ); document.write( "total time = 1.167 hrs \n" ); document.write( " |