4400 Higher November 2009 Paper 3 Q9
9
(a) Expand and simplify fully \(2(w - 3) + 3(w + 5)\) (2)
(b) Solve the equation \(\dfrac{x + 5}{3} = 9\) (2)
(c) Solve the inequality \(5y + 7 \lt 13\) (2)
| Scheme | Marks |
|---|---|
| \(2w - 6 + 3w + 15\) | M1 |
| \(5w + 9\) | A1 |
| (2) |
Notes
M1: M1 for 3 correct terms (no isw)
| Scheme | Marks |
|---|---|
| \(x + 5 = 3 \times 9\) | M1 |
| 22 | A1 |
| (2) |
Notes
A1: Answer only or embedded answer = M0A0
| Scheme | Marks |
|---|---|
| \(5y \lt 13 - 7\) | M1 |
| \(y \lt 6/5\) oe | A1 |
| (2) | |
| (6 marks) |
Notes
M1: Must be an inequality