Question

To travel 88 miles, it takes Sue, riding a moped, 4 hours less time than it takes Doreen to travel 72 miles riding a bicycle. Sue travels 13 miles per hour faster than Doreen. Find the times and rates of both girls.

Doreen _ mph for _ hr
Sue _ mph for _ hr

Answer 1

Vs*Ts = 88
(Vs-13)(Ts+4) = 72

22*4 = 88
9*8 = 72