Algebra-2

1. Let's assume Fiona's speed is  miles per hour. Then Richard's speed is  miles per hour.

We know that time , where  is the distance and  is the speed.

2. For Richard, who sails a distance  miles at a speed of  miles per hour, the time taken  hours.

For Fiona, who sails a distance  miles at a speed of  miles per hour, the time taken  hours.

3. Since the time taken by Richard and Fiona is the same, we can set up the equation:

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