Wayra and Lily are both hiking along the same trail. Wayra is walking at
rate of 3.1 kilometers per hour, and Lily is walking at a rate of 3.6 kilometers per
hour. They start their hikes at different times, but at 1:00 P.M., Wayra passes
the 3.0-kilometer marker and Lily passes the 2.0-kilometer marker.
a. Write a system of equations, and solve by using substitution. Round to
the nearest tenth.
b. At what time will Lily catch up with Wayra? How far along the trail will
they meet?