Let a and c represent, respectively, the price of an adult and a child ticket. We know that
![\begin{cases}3a+2c=78.94\\2a+3c=75.86\end{cases}](https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7D3a%2B2c%3D78.94%5C%5C2a%2B3c%3D75.86%5Cend%7Bcases%7D)
Multiply the first equation by 3 and the second equation by 2 to get
![\begin{cases}9a+6c=236.82\\4a+6c=151.72\end{cases}](https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7D9a%2B6c%3D236.82%5C%5C4a%2B6c%3D151.72%5Cend%7Bcases%7D)
Subtract the two equations to have
![5a=85.1 \iff a=17.02](https://tex.z-dn.net/?f=5a%3D85.1%20%5Ciff%20a%3D17.02)
Plug this value in the first equation to get
![3\cdot 17.02+2c=78.94\iff 2c=27.88\iff c=13.94](https://tex.z-dn.net/?f=3%5Ccdot%2017.02%2B2c%3D78.94%5Ciff%202c%3D27.88%5Ciff%20c%3D13.94)
The trapezoid,segment is false
Y=-68
Hope this helps, have a great day!
The answer is 24.62. Hope this help
Answer:
The equation
could be used to represent this situation.
Step-by-step explanation:
Given:
Azul bought 10 reams of paper at the store for a total cost of $84 the tax on the purpose was $4.
Now, to find the equation that could be used to represent this situation.
Let the cost of a ream of paper be ![x.](https://tex.z-dn.net/?f=x.)
Total reams of paper = 10.
The tax on the purpose = $4.
The total cost = $84.
Now, to write an equation to represent this situation:
![10\times x+4=84](https://tex.z-dn.net/?f=10%5Ctimes%20x%2B4%3D84)
![10x+4=84](https://tex.z-dn.net/?f=10x%2B4%3D84)
Therefore, the equation
could be used to represent this situation.