The movie tickets are sold as per age groups classified into " Adult " and " Child " and " Senior ".
The movie theater compiles its sales as follows:
![\begin{gathered} \text{\textcolor{#FF7968}{Group : Number of Tickets Sold : Sales}} \\ \text{Adult : 20 : \$250} \\ \text{Child : 15 : \$71.25} \\ \text{Senior : 5 : \$37.50 } \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/dsfbja01kj4qqm5jervsdmm9lzga7j7u3i.png)
We need to determine the cost of one child ticket. To determine the rate of a child ticket to the theater using ratios as follows:
![\begin{gathered} \text{\textcolor{#FF7968}{Number of tickets sold ( Child ) : Sales ( Child )}} \\ \text{ 15 : \$71.25} \\ \text{ 1 : x} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/k9fe0m5qbuyj67ohv1tc32yagitrlvc4tm.png)
The above formulation shows that for 15 child tickets sold the theater earned $71.25. The next mathematical expression shows that if 1 child ticket was sold then (x) will the the amount earned.
We will cross multiply-( direct proportions ) the above formulation and solve for ( x ) as follows:
![\begin{gathered} 15\cdot x\text{ = }71.25\cdot1 \\ x\text{ = }(71.25)/(15) \\ \textcolor{#FF7968}{x}\text{\textcolor{#FF7968}{ = \$4.75 per ticket}} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/v0e7tirdafbi9o5bg1n0ip3wwqz9lgnftc.png)
Therefore, the rate of one child ticket charged by the movie theater would be:
![\text{\textcolor{#FF7968}{ \$4.75 per ticket}}](https://img.qammunity.org/2023/formulas/mathematics/college/yc4dqgdrwc2c8v4z2q3fflsiqkr27kfelh.png)