document.write( "Question 913029: a truck driver travels 55km in 1 hour. then he travels 35km in 2 hours. he then travels 175km in 3 hours. what is his average speed? \n" ); document.write( "
Algebra.Com's Answer #554263 by josmiceli(19441)\"\" \"About 
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average speed = ( total distance ) / ( total time )
\n" ); document.write( "\"+%28+55+%2B+35+%2B+175+%29+%2F+%28+1+%2B+2+%2B+3+%29+=+265+%2F+6+\"
\n" ); document.write( "\"+265+%2F+6+=+44+%2B+1%2F6+\"
\n" ); document.write( "Average speed is 44 and 1/6 km/hr
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