Answer: [tex]\$10.50[/tex]
Step-by-step explanation:
Let be "b" the cost in dollars of each bag.
According to the information provided in the exercise, yo know that the total cost of 5 bus tickets that the Hipster Dance company purchases is:
[tex](\$150)(5)=\$750[/tex]
And they have 7 bags that cost "b" dollars each. So, the total cost of 7 bags can be represented with this expression:
[tex]7b[/tex]
Since the total bill is $823.50, you can write the following equation to represent this situation:
[tex]750+7b=823.50[/tex]
Solving for "b", you get:
[tex]b=823.50-750\\\\b=\frac{73.50}{7}\\\\b=10.50[/tex]