document.write( "Question 359528: A truck drivers 12km east in 20 minutes and then drives 4 km north in 10 minutes. What is the average velocity of the truck for the entire trip?
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Algebra.Com's Answer #256528 by mananth(16946)\"\" \"About 
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A truck drivers 12km east in 20 minutes and then drives 4 km north in 10 minutes. What is the average velocity of the truck for the entire trip?
\n" ); document.write( "distance east = 12km
\n" ); document.write( "distance north = 4 km
\n" ); document.write( "total distance = 16 km
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\n" ); document.write( "total time = 1/3 + 1/6 hours
\n" ); document.write( "3/6 = 1/2 hour
\n" ); document.write( "speed = distance /time
\n" ); document.write( "16/(1/2)
\n" ); document.write( "=32 km/hour Average speed
\n" ); document.write( "m.ananth@hotmail.ca
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