Complete Question
Grandpa and Grandma are treating their family to the movies. Matinee tickets cost $4 per child and $4 per adult. Evening tickets cost $6 per child and $8 per adult. They plan on spending no more than $80 on the matinee tickets and no more than $100 on the evening tickets. Could they take 9 children and 4 adults to both shows? Show your work. A yes or no answer is not sufficient for credit.
Answer:
Yes it is possible to take the 9 children and 4 adults to both shows
Explanation:
From the question we are told that
The cost of the Matinee tickets for a child is z = $4
The cost of the Matinee tickets for an adult is a = $ 4
The cost of the Evening tickets for a child is k = $6
The cost of the Evening tickets for an adult is b = $8
The maximum amount to be spent on Matinee tickets is m = $80
The maximum amount to be spent on Evening tickets is e = $100
The number of child to be taken to the movies is n = 9
The number of adults to be taken to the movies is j = 4
Now the total amount of money that would be spent on Matinee tickets is mathematically evaluated as
![t = 4 n + 4 j](https://img.qammunity.org/2021/formulas/mathematics/college/afrtvz9vexxf1p5jgk1amqd34x6471v82o.png)
substituting values
![t = 4 * 9 + 4* 4](https://img.qammunity.org/2021/formulas/mathematics/college/f1y10dnhhsl77j9k3eqizc7k8fa5l12gjs.png)
![t = 52](https://img.qammunity.org/2021/formulas/mathematics/college/guwi8i15x2bpl5rucdjo15nh4izudolzj0.png)
Now the total amount of money that would be spent on Evening ticket is mathematically evaluated as
![T = 6n + 8j](https://img.qammunity.org/2021/formulas/mathematics/college/4hpmr7cad17ljzccboife0i01uljg5f4xs.png)
substituting values
![T = 6(9) + 8(4)](https://img.qammunity.org/2021/formulas/mathematics/college/satqufw0zh6vwjmcg28w8u93qh80n8gf1p.png)
![T = 86](https://img.qammunity.org/2021/formulas/mathematics/college/5s8iy8hol0c3u3pamphcpe09c9vhwouvhg.png)
This implies that it is possible to take 9 children and 4 adults to both shows
given that
![t \le m](https://img.qammunity.org/2021/formulas/mathematics/college/s47fo0bf03glyb54da5n5sqe1qiauhc1u9.png)
i.e $56
$ 80
and
![T \le e](https://img.qammunity.org/2021/formulas/mathematics/college/3cqqkx95av33qgiooix7pxqeuyad841che.png)
i.e $ 86
$ 100