ExplanationFirst, find the two people’s rates in terms of miles per hour (mph). Victor’s rate equals distance over time, or 1 mile over \(\frac{17}{60}\)hours, which equals approximately 3.529 mph.

Calculating Sarah’s speed using the same steps gives you her rate, 4.286 mph. When added, the two rates become their combined rate of 7.815 mph. When you divide 10 miles by 7.815, the answer is approximately 1.28 hours until they meet.

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Sandy

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