Answer:
2 minutes
Step-by-step explanation:
The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel. Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:
Since distance = rate times time, time = distance / rate. In this particular case we have:
2 km
time = distance / rate = ------------------- = (1/30) hr
60 km/hr
(1/30) hr converts to 2 minutes, since 1 hr = 60 minutes
D is correct. The median is 28, Q1 is 22, Q3 is 38
Answer:
3/10
Step-by-step explanation:
If both halves were equal.
½ × ½ = ¼
Closest option is 3/10
Answer:
2.25 square inches
Step-by-step explanation:
we know that
The scale is 
That means
1 inch on a map represent 20 miles in the city
so
An area of 
on a map represent an area of 
in the city
Applying proportion
6a-2(a-1)
6a-2a-2
4a-2
I think it is 4a-2
