document.write( "Question 1162390: he speed of a freight train is 30 mph slower than the speed of a passenger train. The freight travels 140 mi in the same time that it takes the passenger train to travel 210 mi. Find the speed of each train. \n" ); document.write( "
Algebra.Com's Answer #786170 by josgarithmetic(39620)\"\" \"About 
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Freighttrain
\n" ); document.write( "r-30, 140 miles, for some given time\r
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\n" ); document.write( "r, 210 miles, for the same given time\r
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\n" ); document.write( "\n" ); document.write( "\"140%2F%28r-30%29=210%2Fr\"\r
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