This is how I would solve it:
1st # = x 4(x+1)=3x+18
2nd # = x+1 4x+4=3x+18
4x=3x+14
x=14
To check: 15x4=60; 60-42=18. <u>1st # = 14; 2nd # = 15.</u>
Answer:
50 dgrees
Step-by-step explanation:
staruight line is 180 so 180 minus 130 is 50
1)
P = 600
I = 0.07
N = 2
2)
P = 4000
R = 0.09
N =4
3)
P=6000
R = 12
I = .084
Relative frequency is the number of times that the train is late between the total of journeys, so only multiply 0.15*100 =15 times
