I am trying to make a mark scheme for the exam we just had. These are the answers I remember I wote. Please correct me when I am wrong and contribute.
Question 1) 12 45, 788 km/h, price of ticket $940, price of economy ticket
$800, 1433.6 km travelled in car (or 1130 km depending on whether you consider insurwnce or not), $186.37 for fuel (may differ without insurance- with thanks to Abdullah IGCSE
Question 2) (c) x = 1 2/3
(d) x = -2/3
Question 3) (d) enlargement by scale factor 3, centre of enlargement (0,0)
Probability question
a) 0.05
last one) 0.243
Graph question
3 values of x ~ -2.1 0.4 2.1
values of x for f(x)+2= -5x
0.4 and 0.55?
values for x in quadratic equation
3.17
Logo question
Proof: 360-210= 150
180-150= 30
30÷2 (isosceles triangle) is 15
Length of line 15.5
Angle ABC 25.2
Cuboid question
Area of the cuboid 9900 cm²
conversion to m² 0.99
Last question (gradients and construction)
a) root of 360
b) 3x+1
c) 3x-5
d) y= -1/3x + 13/3 (with thanks to AbirHBK)