Lin and Andre start walking toward each other at the same time from opposite ends of 22-mile walking trail. Lin walks at a speed of 2.5 miles per hour. Andre walks at a speed of 3 miles per hour.
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Answer:
d = rt, and the total distance travelled is 22 miles.
2.5t + 3t = 22
5.5t = 22
t = 4 hours
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