each ticket to enter the fair was $9
Let x be the number if students in the group of bus
So, teh cost of x students is 9x
parking fee for the group's bus was $25
the total cost was $313
Since total cost = Cost of x students tickets + Parking fees
Total cost = 9x + 25
9x + 25 = 313
Simplify the equation for x:
Subtract 25 on both side:
9x + 25 - 25 = 313 -25
9x = 288
Divide both side by 9
9x/9 = 288/9
x = 32
Since x is the number if students
thus, Number of students = 32
Answer :Equation : 9x +25 = 313; Number of students = 32