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
Answer:
i think you reflect across the axis
Step-by-step explanation:
i learned this
: )
8 times 2 is 16 and 12 times 3 is 36. So 16 plus 36 is 52