Foundation November 2017 Paper 1 Q6
6 Here are five straight rods.
All measurements are in centimetres.
The total length of the five rods is \(L\) cm.
Find a formula for \(L\) in terms of \(a\).
Write your formula as simply as possible. (3)
| Answer | Mark | Notes |
|---|---|---|
| \(L = 5a + 3\) | M1 | for expression \(a - 1 + a + a + a + a + 4\) or \(L =\) an expression in \(a\) |
| M1 | for \(5a + 3\) or \(L = a + a + a - 1 + a + a + 4\) oe | |
| A1 | for \(L = 5a + 3\) |