The graph below describes the journey of a train between two cities. b)
D=
200
1201
c)
a) Work out the
acceleration, in km/h?,
in the first 15 mins
S= 150
100
280
b) Work out the distance
between the two cities.
560
40
c) Work out the average
speed of the train during 20
the journey
gam
10am
Te
11am

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle