Final answer:
Martin's unit rate is 0.2 kilometers per minute, or 200 meters per minute, calculated by dividing the distance he ran by the time it took.
Step-by-step explanation:
Martin finishes a 5 kilometer race in 25 minutes, and you're asking about his unit rate. To find this, we divide the total distance by the total time. In unit rates, we typically want the time to be in hours for speed, but since we want the unit rate per minute, we'll keep it as is.
The calculation is as follows:
- Total distance: 5 kilometers
- Total time: 25 minutes
To find kilometers per minute, we divide 5 km by 25 min. Doing that, we get: 5 km / 25 min = 0.2 kilometers per minute.
If instead we want the unit rate in meters per minute, we'd convert kilometers to meters first (as there are 1000 meters in a kilometer), so 5 km = 5000 m. Then, 5000 m divided by 25 min equals 200 meters per minute. So, Martin's unit rate is 0.2 kilometers per minute or 200 meters per minute.