Let S be the distance we seek in miles, say, the distance Bryan drives from home to the meeting point. She's driving more or less half the speed of Kathleen (maybe she's got a better a car or she's more anxious for the meeting than Bryan...).
Let S be the distance we seek in miles, say, the distance Bryan drives from home to the meeting point. She's driving more or less half the speed of Kathleen (maybe she's got a better a car or she's more anxious for the meeting than Bryan...).