Two ice skaters started on opposite ends of a 200-foot-long rink and then skated toward each
other at constant speeds. The faster skater traveled 7 feet for every 6 feet the slower skater
traveled. If x represents the number of feet the slower skater had traveled at the moment the
skaters passed each other, which proportion can be used to find x?
6
200
6
200
6
(6+7)
200
7
(6+7)
200