Question 248437
D=RT
D=100T
D=120(T-.2)
100T=120(T-.2)
100T=120T-24
100T-120T=-24
-20T=-24
T=-24/-20
T=1.2 HOURS AFTER TRAIN A LEAVES THE STATION THEY WILL MEET.
3:20+1:12=4:32 HOUR OF THEIR MEETING.
PROOF:
100*1.2=120(1.2-.2)
120=120*1
120=120