45 / 80 Marks U E D
Ic с
43%
The diagram below shows an equilateral triangle ABC with AB = (4x - 9) cm.
Diagram not drawn to scale
B
A А
(4x - 9)cm
The perimeter of the triangle is 45 cm.
Calculate the value of x.
[3]

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?