Given:
The cost of adult tickets = $5.
The cost of student tickets = $2.
The total number of tickets = 202.
The total cost = $764.
Aim:
We need to find the cost of the adult ticket.
Step-by-step explanation:
Let x be the number of adult tickets.
Let y be the number of student tickets
Given that the total number of tickets is 202.
![x+y=202](https://img.qammunity.org/2023/formulas/mathematics/college/hvd43vyuealusuev8xe03l6sackwu1h42f.png)
Substract x from both sides of the equation.
![y=202-x](https://img.qammunity.org/2023/formulas/mathematics/college/d746pypt4isybsnqhgyq0oqc13x7r171y8.png)
Given that the total cost is $764.
![5x+2y=764](https://img.qammunity.org/2023/formulas/mathematics/college/7v2znkawfcvfrpdyptxhokdc9fybayrrc1.png)
![\text{ Substitute }y=202-x\text{ in the equation to find the value of x.}](https://img.qammunity.org/2023/formulas/mathematics/college/q9kc9hofvd53twsieucbkd4l6qmt512g20.png)
![5x+2(202-x)=764](https://img.qammunity.org/2023/formulas/mathematics/college/1n4pmz6w440x9edq0pmwtwbo975lbxnv1k.png)
Solve for x.
![5x+404-2x=764](https://img.qammunity.org/2023/formulas/mathematics/college/bzf8e4x0w5oy2c0dulwygczthnv6o5ruit.png)
![5x-2x=764-404](https://img.qammunity.org/2023/formulas/mathematics/college/bnbrn6j9bhz5lnn8vripkppuxlqexwjom9.png)
![3x=360](https://img.qammunity.org/2023/formulas/mathematics/college/ki6jsdw9btqirharahjtxeapv0fqc4rcrq.png)
Divide both sides by 3.
![(3x)/(3)=(360)/(3)](https://img.qammunity.org/2023/formulas/mathematics/college/40u0scjeji18vpn70f1zdulnh19k6oei3c.png)
![x=120](https://img.qammunity.org/2023/formulas/mathematics/college/zngja2ule9v1f1j0bilittqkiolz7v7tpv.png)
Final answer:
The number of adult tickets = 120 tickets.