4400 Higher June 2007 Paper 4 Q1
1 The diagram shows the lengths, in cm, of the sides of a triangle.
The perimeter of the triangle is 17 cm.
(i) Use this information to write an equation in \(x\). (1)
(ii) Solve your equation. (2)
| Scheme | Marks |
|---|---|
| (i) Answer: \(x + 2x + 1 + 3x - 5 = 17\) | B1 |
| (ii) \(6x = 21\) or \(6x - 21 = 0\) etc | M1 |
| \(x = 3.5\) oe eg \(\frac{21}{6}\) | A1 |
| (3) | |
| (3 marks) |
Notes
B1: B1 oe eg \(6x - 4 = 17\) ISW not ‘= \(p\)’
M1: ft (i) if \(6x = c\)