Here is part of a railway timetable. Norwich
0655
0710
0755
0805
0737
0752
0830
0847
Ipswich
Colchester
0812
0906
London
0848
0903
0933
0955
0848
a) At what time does the first train arrive in London?
b) How long does it take the 0710 train from Norwich to arrive at Colchester?
hours 2 minutes
1
c) Carys gets to Norwich station at 0750.
How long will she have to wait for a train directly to Colchester?
11 minutes

I dont get this question

Step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is