Answer:
0.875 is equivalent to 7/8
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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:
120
Step-by-step explanation:
Add more detail if it is a different question
Answer:
i) Because so that we can understand them steps by step
ii)We could enjoy when we study in school
