document.write( "Question 888326: a car traveled from a to b in 6 hours. its average speed for first three hours was 60mph and the last 3 hours was 40mph. find the average speed for whole trip \n" ); document.write( "
Algebra.Com's Answer #537279 by rfer(16322)\"\" \"About 
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(180+120)/2=
\n" ); document.write( "300/2=150
\n" ); document.write( "150/3=50mph ave
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