document.write( "Question 883597: A train leaves a station and travels at 80 miles per hour for 3.5 h and then at 70 miles per hour for 2.0 hrs to reach its destination. What was the trains average speed for the entire trip? \n" ); document.write( "
Algebra.Com's Answer #533643 by ankor@dixie-net.com(22740)\"\" \"About 
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A train leaves a station and travels at 80 miles per hour for 3.5 h and then at 70 miles per hour for 2.0 hrs to reach its destination. What was the trains average speed for the entire trip?
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\n" ); document.write( "Av speed = total dist/total time
\n" ); document.write( "a = \"%28%283.5%2880%29%2B2%2870%29%29%29%2F%28%283.5%2B2%29%29\"
\n" ); document.write( "a = 76.36 mph
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