document.write( "Question 1005745: A man is three eighths of the way across a train bridge when he hears a train coming from behind. If he runs as fast as he can back toward the train, he will get off the bridge just in time to avoid a collision. Also, if he runs as fast as possible away from the train, he will get off the bridge (on the other side) just in time to avoid a collision. The train is traveling at 60 miles per hour. How fast does the man run? \r
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document.write( "Hi! I'm sorry if I'm being a bother, but I would be grateful if you could take some of your time to answer this question. Thank you so much for helping! Ps. Sorry if there's any typos! \n" );
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Algebra.Com's Answer #621933 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A man is three eighths of the way across a train bridge when he hears a train coming from behind. \n" ); document.write( " If he runs as fast as he can back toward the train, he will get off the bridge just in time to avoid a collision. \n" ); document.write( " Also, if he runs as fast as possible away from the train, he will get off the bridge (on the other side) just in time to avoid a collision. \n" ); document.write( " The train is traveling at 60 miles per hour. \n" ); document.write( " How fast does the man run? \n" ); document.write( ": \n" ); document.write( "From the information given, we sum this up with the statement: \n" ); document.write( " \"The train travels the full length of the bridge while the man run's 2/8 of the length of the bridge\" \n" ); document.write( ": \n" ); document.write( "Change 2/8 to .25 \n" ); document.write( ": \n" ); document.write( "let s = the speed of the man \n" ); document.write( "A ratio equation \n" ); document.write( " \n" ); document.write( "s = .25*60 \n" ); document.write( "s = 15 mph is the speed of the running man \n" ); document.write( " \n" ); document.write( " |