SOLUTION: A train traveling at 45 miles per hour enters a tunnel that is 1 mile long. The length of the train is 1/8 mile. How many minutes after the front of the train enters the tunnel doe

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Question 725941: A train traveling at 45 miles per hour enters a tunnel that is 1 mile long. The length of the train is 1/8 mile. How many minutes after the front of the train enters the tunnel does the back of the train exit the tunnel? express your answer as a decimal to the nearest tenth.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
From the time that the front is just entering the tunnel,
the back of the train has to travel +1%2F8+%2B+1+=+9%2F8+ mi
+9%2F8+=+45%2At+
+t+=+%289%2F8%29+%2F+45+
+t+=+.025+ hrs
+.025%2A60+=+1.5+ minutes