document.write( "Question 659777: Suppose that on a round trip you average 30 mph on the way out and 60 mph on the way back. What is your average speed of the entire trip? \n" ); document.write( "
Algebra.Com's Answer #410919 by ReadingBoosters(3246)\"\" \"About 
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(30mph + 60mph)/2
\n" ); document.write( "90/2 = 45mph average
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