Question

understand: the question is asking how fast, looking for speed as the answer, of miles per hour. we need to use a unit conversion to answer, and the answer should have units. solve: we know we are looking for the speed in miles per hour, and we know the conversion between kilometers and miles. 1 kilometer ≈ 0.6213 miles. since the speed limit is 100 km/hr, we calculate the speed in miles per hour by multiplying 0.6213 by 100.

Explanation:

Step1: Identify conversion factor

$1 \text{ kilometer} \approx 0.6213 \text{ miles}$

Step2: Multiply speed by conversion factor

$100 \times 0.6213 = 62.13$

Answer:

$62.13$ miles per hour