6. 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.

Answer 1

d = rt, and the total distance travelled is 22 miles.

2.5t + 3t = 22

5.5t = 22

t = 4 hours