5000 people must buy recreation passes for the town to break even.
Break even is the point at which the profit made is 0, that is the cost of production is equal to the revenue.
Let x represent the total number of people, hence:
Total cost = 250000 + 3x
Number of golf pass = 25% of x = 0.25x
Number of tennis pass = 35% of x = 0.35x
Number of pool pass = (100% - 35% - 25%) of x = 0.4x
Total revenue = ($30 * 0.25x) + ($50 * 0.35x) + ($70 * 0.4x) = 53x
At breakeven:
Total cost = total revenue
53x = 250000 + 3x
x = 5000
5000 people must buy recreation passes for the town to break even.
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