Foundation November 2020 Unit 1 Q9
9.
(a) Simplify the expression \(9g - 5g + 12g\). [1]
(b) Solve the equation \(5y = 45\). [1]
(c) Solve the equation \(w - 16 = 14\). [1]
(d) Solve the equation \(4x + 7 = 10\). [2]
| Scheme | Marks | Comments |
|---|---|---|
| \(16g\) | B1 |
| Scheme | Marks | Comments |
|---|---|---|
| (\(y\) =) 9 | B1 | Accept embedded answers. Mark final answer. |
| Scheme | Marks | Comments |
|---|---|---|
| (\(w\) =) 30 | B1 | Accept embedded answers. Mark final answer. |
| Scheme | Marks | Comments |
|---|---|---|
| \(4x = 10 - 7\) (=3) | B1 | |
| \(x = \dfrac{3}{4}\) or equivalent. | B1 | FT from \(4x = b\). Integer answer required if b is a multiple of 4 Mark final answer. Allow an embedded answer eg 4 × 0·75 + 7 = 10 for B2, but penalise −1 if contradicted by \(x \ne 0{\cdot}75\) |