Answer:
85
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
is the situation could the expression model.
Answer:
I think you need to mutply those. And you will get your answer.
Step-by-step explanation:
1) -34 which is very simple
2) 4 2/3
Let s = northbound train
Then
2s = southbound train
:
Distance = time * speed
4s + 4(2s) = 600
:
4s + 8s = 600
:
12s = 600
:
s = 600/12
:
s = 50 mph is the northbound train
Then
2(50) = 100 mph is the southbound train
:
:
Check:
4(50) + 4(100) = 600