Geometric sequence is Exponential.
Geometric Recursive
a1=2
an=4 an-1
2,8,32,128,512
Answer:
48,58
Step-by-step explanation:
Let The speed of the west bound train be x
Let the east bound train be x+10
The speeds can be calculated as follows
2(2x+10)= 232
4x + 40= 232
4x= 232-40
4x= 192
x= 192/4
= 48
Hence the speedof the west bound train is 48
The speed of the east bound train is 48+10
= 58
Yup! We're all pretty good here.
Ummm I think the answer is 9