She subtracts $8$ from the number and then multiplies the result by $3$. Her answer is $11$ less than the number she first thought of. Form an equation in $n$ and solve it to determine Kate’s number.
(b)[3]
Write the following as a single fraction in its simplest form: $\frac{x^2 - 4}{2} \div \frac{x^2 + 2x}{4}$.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “An accurate equation is formed” …