The number of mosquitoes at the beach has tripled every year since 1999. In 1999,

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763 Crates

Step-by-step explanation:

Production cost of one crate of eggs = $9.86

selling cost of one crate of eggs = $34.24

Overhead expenses = $7,312

We have to calculate number of crates sold to generate the profit of $11,300.

Let number of crates sold = x

cost of production of x crates = 9.86x

selling price of x crates = 34.24x

Total profit = (selling price - cost price) - overhead expenses.

11,300 = (34.24x - 9.86x) - 7,312

11,300 = 24.38x - 7,312

11,300 + 7,312 = 24.38x

18,612 = 24.38x

x = 763 crates

763 crates must be sold in order to realize a profit of $11,300.