To solve this problem, we need to calculate the distance the girl travels when pedaling her bicycle at a speed of 0.10 kilometers per minute for a time span of two hours.
The formula to calculate distance is:
Distance = Speed Time
Here's how to calculate the distance step-by-step, taking care to pay attention to the units:
Step 1: Gather the known information.
- The girl's speed is 0.10 kilometers per minute.
- The time span is 2 hours.
Step 2: Make sure the units for time are compatible with the units for speed.
- Currently, speed is in kilometers per minute, and time is in hours.
- We need to convert hours to minutes because the speed is given in kilometers per minute.
- There are 60 minutes in an hour.
- Multiply the time in hours by 60 to convert it to minutes.
Time (in minutes) = Time (in hours) 60
= 2 60
= 120 minutes
Step 3: Calculate the distance.
- Now that the units are compatible (both are in terms of minutes), we can multiply the speed by the time to find the distance.
Distance = Speed Time
= 0.10 km/min * 120 min
= 12 kilometers
So the girl will travel 12 kilometers in two hours at a speed of 0.10 km/min.
