Step-by-step explanation:
Given,
Length of railroad car = 6 inches
The length of railroad track = 5 feet
We will convert this length into inches.
1 feet = 12 inches
5 feet = 12*5 = 60 inches
Let,
x be the number of cars.
Number of cars * Length of each car = Length of track
Dividing both sides by 6
10 cars can fit on railroad track.
Answer:13 miles over the speed limit
Step-by-step explanation:
The formula of an area of a circle:

We have
r = 1.8 m
π ≈ 3.14
Substitute:

Answer:
12 combinations
Step-by-step explanation: