good morning :) The train to Sun City travels 150 miles per hour. How long will a trip take if Sun City is 525 miles away? A. 4 hours B. 3 hours 30 minutes C. 3 hours 15 minutes D. 3 hours

B. 3 hours 30 minutes

Step-by-step explanation:

Time = Distance / Speed

Time = 525 / 150

Time = 3.5

repeat the question

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18