Question
A train travels 3 km per minute. What is the train’s speed in miles per hour? There are about 1.6 kilometers in 1 mile. 60 minutes in 1 hour. Round to the nearest tenth. Do not label.(1 point)
Responses
180 miles per hour
180 miles per hour
112.5 miles per hour
112.5 miles per hour
4.8 miles per hour
4.8 miles per hour
.05 miles per hour
.05 miles per hour
To find the train's speed in miles per hour, we need to convert the distance traveled from kilometers to miles and the time from minutes to hours.
The train travels 3 km per minute. We can convert this to miles per hour by using the conversion factor of 1.6 kilometers in 1 mile and 60 minutes in 1 hour.
First, we convert the distance:
3 km * (1 mile / 1.6 km) = 1.875 miles
Next, we convert the time:
1 minute * (1 hour / 60 minutes) = 0.0167 hours
Finally, we calculate the speed:
1.875 miles / 0.0167 hours = 112.49 miles per hour (rounded to the nearest tenth)
Therefore, the train's speed in miles per hour is approximately 112.5 miles per hour.