Answer:
5-hour reunion at Picnic Place will cost $250.
5-hour reunion at Total Tent will cost $350.
15 hours for both choices to cost the same.
Step-by-step explanation:
Let x represent the number of hours.
Let y represent the total cost.
For Picnic Place, our equation can be written as;
![y=20x+150](https://img.qammunity.org/2023/formulas/mathematics/high-school/lihoz61d6sr1ciserae4qhix5syq9ofmqt.png)
For a 5-hour reunion at Picnic Place, the charge will be;
![\begin{gathered} y=20(5)+150 \\ =100+150 \\ =250 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/bl85otkf469r2s2y6wvvlpwj30u7lhdgr0.png)
For Total Tent, our equation can be written as;
![y=10x+300](https://img.qammunity.org/2023/formulas/mathematics/high-school/uxbaz76zxg182du5d3x5glxs8095fzuu8x.png)
For a 5-hour reunion, the cost will be;
![\begin{gathered} y=10(5)+300 \\ y=50+300 \\ y=350 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/c5ch0cmlzph71f72efa88cx4sc1l74h3ky.png)
To determine how many hours onwill need to reserve both shelters for both choices to cost the same, we just need to equate both equations and solve for x;
![\begin{gathered} 20x+150=10x+300 \\ 20x-10x=300-150 \\ 10x=150 \\ x=(150)/(10)=15\text{hours} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/6xv3y4x8aqt59466gui45ucpb0uesnzpnb.png)