Respuesta :
x - the full cost
[tex]75\%x=45 \\ \frac{75}{100}x=45 \\ \frac{3}{4}x=45 \\ x=45 \times \frac{4}{3} \\ x=15 \times 4 \\ x=60[/tex]
The full cost is £60.
[tex]75\%x=45 \\ \frac{75}{100}x=45 \\ \frac{3}{4}x=45 \\ x=45 \times \frac{4}{3} \\ x=15 \times 4 \\ x=60[/tex]
The full cost is £60.