Mathematics 0580: CHANGING THE SUBJECT Topical Past Paper Questions

Rearrange the formula to make $m$ the subject. $$ 5m = x(7 + m) $$ $m =$ [3]

Make t the subject of the formula. $$ x=\frac{7t}{5-t} $$ $$ t=\begin{matrix}{\mathbf{\cdots}}\\ {\mathbf{\cdots}}\\ {\mathbf{\cdots}}\\ {\mathbf{\cdots}}\\ \end{matrix}\begin{matrix}{[3,1]}\\ {[2,1]}\\ {[1,0]}\\ {[0,1]}\\ \end{matrix} $$

(a) > (i) Write 70 as a product of its prime factors. [2] > (ii) Find the highest common factor (HCF) of 70 and 112. [2] (b) Simplify. > (i) $a^{12} \div a^4$ [1] > (ii) $\frac{5}{2b} \times \frac{bc}{20}$ [2] (c) Solve. $4 + 2x = 15$ [2] (d) Solve. $$ \frac{34 + 2x}{5} = 4 - x $…