I woud make that fraction a decimal. 5/2= 2.5 It takes 2.5 seconds to cover 50 yards. We need to do y/x to find the rate, or yards/time. 50÷2.5= 20 The cheetah covers 20 yards every second. We can find how many sets of 20 yards are in 80 yards to find the number of seconds. 80÷20= 4 × 1 = 4 It would take 4 seconds for the cheetah to run 80 yards.
