80*t+70*t=50
t = .33 hours =20 minutes
This assumes the trains are going opposite directions (opposite tracks so I’m assuming opposite directions)
Answer:
-6
Step-by-step explanation:
(1-3)(1+2)=-2*3=-6
Step-by-step explanation:
b is the anwser or 1005 so there u go
1. the last one
2.the first one hope this helps.