Question

if 4 tickets costs$40, how much does 8 tickets cost?

Answer 1

4 tickets----------------------------->$40

8 tickts------------------------------->$x

Using cross multiplication:

$\begin{gathered} \frac{4}{8}=\frac{40}{x} \\ x=\frac{40\times8}{4} \\ x=80 \end{gathered}$

8 tickets cost $80