Final answer:
Billy can find the equivalent of a 50 km/h speed limit in miles per hour by dividing 50 by 1.61, getting approximately 31 mph, which is a common residential speed limit.
Step-by-step explanation:
The student's question involves converting a speed limit from kilometers per hour to miles per hour. Billy, who is on a trip to Canada, sees a sign indicating a maximum speed of 50 km/h and wants to know the equivalent in miles per hour.
The relationship between kilometers and miles is that 1 mile is approximately 1.61 kilometers. Therefore, to estimate the speed in miles per hour, we divide the speed limit in kilometers by 1.61.
Using this calculation, we find that 50 kilometers per hour is roughly equivalent to 31 miles per hour:
This speed is considered moderate and is typically observed in residential areas. Understanding this conversion is important, especially for travelers like Billy who need to adjust to different measurement systems in various countries.