Answer:
a. L = 20t
Step-by-step explanation:
The length increases by 20 millimeters per minute
X+y=11
22x+15y=228
y=11-x
22x+15y=228
22x+15(11-x)=228
22x+165-15x=228
7x+165=228
7x=63
x=9
9+y=11
y=2
The solution to the system of equations is (9,2)
B, because you would just assume the line continues forever on both sides.
29*2.4-36.5= 33.1 hrs before the freight train cought up.
