The problem: June rides her bike 3 mph slower than Kim. June takes 84 minutes longer to ride 64 miles than Kim does. What is each person's speed in mph?
I built this structure for each
J: (r-3)(t+1.4)=64
K: (r)t=64
I solved for t in Kim's and substituted into June's.....like this...
(r-3)(64/r+1.4)=64
I then solved and got r = 13.306...
DId I do it right? I dont know if this is the right answer. It checks ok, but I figure that it is beucause it is the correct solution for the equation. But I dont know if the equation is CORRECT for the problem.
I built this structure for each
J: (r-3)(t+1.4)=64
K: (r)t=64
I solved for t in Kim's and substituted into June's.....like this...
(r-3)(64/r+1.4)=64
I then solved and got r = 13.306...
DId I do it right? I dont know if this is the right answer. It checks ok, but I figure that it is beucause it is the correct solution for the equation. But I dont know if the equation is CORRECT for the problem.