Answer:
g = 7
Explanation:
Given that:
Total people = students + teachers = 42 + 2
Total people = 44
Total amount = $485
Admission per person = $5
Admission of 44 persons = 44*5 = $220
Bus rental = $230
Total expense = admission + bus rental
Total expense = $220 + $230
Total expense = $450
Remaining amount = total amount - total expense
Remaining amount = $485 - $450 = $35
So if a guest is invited, it will cost $5 for admission
If g is the number of guests, the equation will be:
g($5) = $35
Dividing both sides by 5
g = 35/5
g = 7
So 7 guests can be invited
i hope it will help you!