Question 278828
look at your initial equation


rate times times equals distance ___ when Lowe overtakes Matthew, the distances are equal
___ but the time (30 min) starts when Matthew has a 1200 yd head start
___ to "equalize" the distances, the 1200 is added to Matthew, not Lowe


RlTl = RmTm + 1200


Rl = 3Rm


substituting ___ 3Rm * 30 = Rm * 30 + 1200 ___ 60 Rm = 1200 ___ Rm = 20


Rl = 3(20) = 60