To determine how many quiches the Spanish Club needs to sell to break even, we can set up an equation based on their costs and revenue.
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Cost to make quiches: The fixed cost is $30, and the variable cost per quiche is $0.50. Therefore, if \( x \) represents the number of quiches, the total cost \( C \) for making \( x \) quiches is given by:
\[ C = 30 + 0.50x \]
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Revenue from selling quiches: They will sell each quiche for $2. Thus, the total revenue \( R \) from selling \( x \) quiches is:
\[ R = 2x \]
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Break-even condition: They break even when total revenue equals total cost:
\[ R = C \]
Substituting the expressions for revenue and cost:
\[ 2x = 30 + 0.50x \]
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Solve for \( x \):
First, we can subtract \( 0.50x \) from both sides:
\[ 2x - 0.50x = 30 \]
This simplifies to:
\[ 1.5x = 30 \]
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Divide both sides by 1.5:
\[ x = \frac{30}{1.5} = 20 \]
Thus, the Spanish Club will need to sell 20 quiches to break even. The correct answer is:
20 quiches.