To find out how many kilometers Isla can run in 50 minutes, we can use a proportion based on her running rate.
We know that Isla can run 800 meters in 10 minutes. Let's set up a proportion to find the distance she can run in 50 minutes:
Distance in meters / Time in minutes = Distance in meters / Time in minutes
800 meters / 10 minutes = x kilometers / 50 minutes
To solve for x, we cross-multiply and then divide:
(800 meters) * (50 minutes) = (10 minutes) * x kilometers
40,000 meters = 10x kilometers
Dividing both sides by 10:
40,000 meters / 10 = x kilometers
4,000 meters = x kilometers
Therefore, Isla can run 4,000 meters (or 4 kilometers) in 50 minutes.
I hope this helps! :)