The tail of the train starts one mile from the mouth of the tunnel and it must travel that distance plus the length of the tunnel in 3 minutes.
Let t = tunnel length
t + 1 = distance the tail must travel in 3 minutes.
3 minutes = 1/20 hr
(t+1) miles / 60 m/hr = 1/20 hr
t + 1 = 60/20
t+1 = 3
Subtract 1 from each side:
t = 2
The tunnel is 2 miles long.
Answer:
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Step-by-step explanation:
7.6 x 8 = 60.8
so the answer is either b or c
7.6 per hour
or
7.6h
makes the answer b
for this graph the answer is D
Answer: V= cm^3
V = s³
V = (0.01)³
V=(1/100)³
V= cm^3