Kailey and Macy paddle a canoe at a rate of 6 miles per hour in still water. They travel downstream for 10 miles, and to their d
istress, they have to paddle back upstream 10 miles because no one was was there to pick them up at the end of their canoe trip. The total trip took 7 hours. Assuming they paddled at the same rate downstream and upstream, how fast was the speed of the water's current in miles per hour? Round your answer to 3 decimal places.
