Foundation June 2019 Paper 1 Q7
7.
(a) Simplify
(i) \(2a - b + 5a - 3b\), [2]
(ii) \(1 + 4 \times c \times c\). [1]
(b)
(i)
This formula converts a UK shoe size to a Japanese shoe size.
Japanese size = UK size + 19
Yuto wears a Japanese size 29·5.
What would Yuto’s shoe size be in the UK? [1]
(ii)
This table shows the equivalent shoe sizes used in the UK and the USA.
| UK size | 5 | 6 | 7 | 8 | 9 |
|---|---|---|---|---|---|
| USA size | 6 | 7 | 8 | 9 | 10 |
Complete this formula connecting the UK size and the USA size. [1]
UK size = ..............................
| Scheme | Marks | Comments |
|---|---|---|
| (i) \(7a - 4b\) | B2 | Mark final answer for B2 or B1 B1 for \(7a + kb\) or for \(ka - 4b\) |
| (ii) \(1 + 4c^2\) | B1 | Mark final answer |
| Scheme | Marks | Comments |
|---|---|---|
| (i) 10.5 | B1 | |
| (ii) USA size – 1 | B1 | allow equivalent in words or e.g. USA – 1 |
| (5) |