A train traveling at 45 mph enters a tunnel that is 1 mile long. The length of the train is 1/8 of a 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.

NoobGuest Jun 16, 2019

#1**+2 **

The back of the train (and therefore the whole train) has to travel 1+1/8 miles = 1.125 miles

So

Speed = 45m/h

Distance=1.125miles

find time.

The formula is

speed = distance / time

So you should be able to work it out from there.

Melody Jun 16, 2019

#7**+1 **

That is right but what are the units? **Do you have to do a conversion?**

**How many minutes** after the front of the train enters the tunnel does the back of the train exit the tunnel?

**I am really pleased that you are interacting with me Noobguest. ** You will learn much better and make a better impression that way!

Melody Jun 16, 2019