Final answer:
After one hour, Kiran and Clare will be x + y miles apart.
Step-by-step explanation:
To find out how far apart Kiran and Clare will be after one hour, we need to determine their combined walking distance. Since they started walking towards each other along the trail, their combined walking distance after one hour is the sum of the distances they covered individually in one hour.
Let's assume that Kiran's walking speed is x miles per hour. Therefore, in one hour, Kiran will have walked x miles. Similarly, let's assume that Clare's walking speed is y miles per hour. Hence, in one hour, Clare will have walked y miles.
The total distance they covered after one hour is x + y miles. Therefore, after one hour, Kiran and Clare will be x + y miles apart.