document.write( "Question 785611: Carlos made a trip to the train station and back. The trip there took 4 hours and the trip back took 5 hours. He averaged 7 mph faster on the trip there than on the return trip. What was Carly's average speed on the outbound trip? \n" ); document.write( "
Algebra.Com's Answer #477615 by stanbon(75887)\"\" \"About 
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Carlos made a trip to the train station and back. The trip there took 4 hours and the trip back took 5 hours. He averaged 7 mph faster on the trip there than on the return trip. What was Carly's average speed on the outbound trip?
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\n" ); document.write( "To the station DATA:
\n" ); document.write( "time = 4 hrs ; rate = x mph ; distance = r*t = 4x miles
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\n" ); document.write( "From the station DATA:
\n" ); document.write( "time = 5 hrs ; rate = x-7 mph ; distance = r*t = 5x-35 miles
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\n" ); document.write( "Equation:
\n" ); document.write( "distance = distance
\n" ); document.write( "4x = 5x-35
\n" ); document.write( "x = 35 mph (rate on the outbound trip)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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