Answer:
Number of Advance ticket = 15
Explanation:
Given:
Advance ticket cost = $6.50
Door ticket cost = $8.00
Number of door ticket = 10
Total amount spend = $177.50
Assume:
Number of Advance ticket = x
So,
Total amount spend = [(Advance ticket cost)(Number of Advance ticket) + (Door ticket cost)(Number of door ticket)
$177.50 = [($6.5)(x) + ($8)(10)]
$177.50 = $6.5 x + $80
$97.50 = $6.5 x
x = 15
So,
Number of Advance ticket = 15