Answer:
B 2x 3 x 11
Step-by-step explanation:
good luck have a nice day
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
<span>Eu preciso de pontos, então você pode manter isso por favor</span>
C=0.05(125000)+500
C=6250+500
C=6750
comission is $6750