Given:
The table shows a proportional relationship between the number of tickets sold and the number of hours.
The proportional relationship means the equation that states the two ratios are equal.
a) Let x be the number of tickets sold in 1 hour.
[tex]\begin{gathered} \frac{x}{1}=\frac{240}{3} \\ 3x=240 \\ x=\frac{240}{3} \\ x=80 \end{gathered}[/tex]
The number of tickets sold in 1 hour is 80.
b) Let, y be the number of tickets sold in 8 hours.
[tex]\begin{gathered} \frac{y}{8}=\frac{720}{9} \\ 9y=5760 \\ y=\frac{5760}{9} \\ y=640 \end{gathered}[/tex]
The number of tickets sold in 8 hours is 640.
