Sep 23, 2010 #1 A Aaron Member Joined May 13, 2008 Messages 833 Reaction score 0 Points 16 on a 20 mile bike ride, brenda rode the first 10 miles at a speed of 8 mi/hr. how fast must she ride the rest of the trip so that her average speed is 4 mi/hr?
on a 20 mile bike ride, brenda rode the first 10 miles at a speed of 8 mi/hr. how fast must she ride the rest of the trip so that her average speed is 4 mi/hr?