document.write( "Question 757791: A family on vacation drove 200km in 2 hours and then travelled only 40km for the next hour due to construction. what was the family's average velocity the whole trip? \n" ); document.write( "
Algebra.Com's Answer #461110 by knighty2002uk(39)\"\" \"About 
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Velocity = Distance/time\r
\n" ); document.write( "\n" ); document.write( "Distance = 200+40 = 240km\r
\n" ); document.write( "\n" ); document.write( "Time = 2+1 = 3hrs\r
\n" ); document.write( "\n" ); document.write( "Velocity = 240/3 = 80kph
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