8.2k views
5 votes
The speed limit on certain interstate highways is 65 miles per hour. How many kilometers per hour is this?

km/h
a. 89.6 km/h
b. 104.61 km/h
c. 72.4 km/h
d. 56.8 km/h

1 Answer

5 votes

Final answer:

b. 104.61 km/h.The speed limit of 65 miles per hour converts to approximately 104.61 kilometers per hour when using the conversion factor of 1 mile being equal to 1.609 kilometers.

Step-by-step explanation:

The correct answer is option a. 104.61 km/h. To convert miles per hour (mi/h) to kilometers per hour (km/h), we use the conversion factor that 1 mile is approximately 1.609 kilometers. To convert 65 miles per hour to kilometers per hour, multiply 65 by 1.609:

65 mi/h × 1.609 km/mi = 104.585 km/h

The value can be rounded to two decimal places as per the options provided, which gives us 104.61 km/h. Therefore, the speed limit of 65 miles per hour is equivalent to 104.61 kilometers per hour.

To convert miles per hour to kilometers per hour, we need to use the conversion factor of 1 mile = 1.609 kilometers.

Given that the speed limit is 65 miles per hour, we can multiply it by the conversion factor to find the equivalent in kilometers per hour:

65 miles/hour × 1.609 kilometers/mile = 104.61 kilometers/hour

Therefore, the speed limit of 65 miles per hour is equivalent to 104.61 kilometers per hour, which is closest to option c. 72.4 km/h.

User Antony Scott
by
8.8k points