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A parent volunteer group is raising money by making custom hats to sell at school activities. They plan to sell the hats for [tex]\$12[/tex]. Each hat costs [tex]\$6[/tex] to make. They spent [tex]\$50[/tex] for advertising.

Use [tex]n[/tex] to represent the number of hats they sell. Multiply this by the money they make for each hat, then subtract the advertising cost.

Which expression represents the money that the group raises?

A. [tex]12n - 6n - 50[/tex]
B. [tex](12 - 6)n - 50[/tex]
C. [tex]12n - 6 - 50[/tex]

Sagot :

Let's solve this step-by-step:

1. Selling Price: The group plans to sell each hat at [tex]\(\$12\)[/tex].

2. Cost to Make Each Hat: It costs [tex]\(\$6\)[/tex] to make each hat.

3. Profit Per Hat: To find the profit per hat, we subtract the cost to make each hat from the selling price. So:
[tex]\[ \text{Profit per hat} = \$12 - \$6 = \$6 \][/tex]

4. Number of Hats Sold: Let [tex]\(n\)[/tex] represent the number of hats sold.

5. Total Profit from Selling [tex]\(n\)[/tex] Hats: To find the total money raised from selling [tex]\(n\)[/tex] hats, we multiply the profit per hat by the number of hats sold:
[tex]\[ \text{Total Profit} = \$6 \times n = 6n \][/tex]

6. Advertising Cost: They spent [tex]\(\$50\)[/tex] on advertising.

7. Total Money Raised: To find the total money raised, we subtract the advertising cost from the total profit:
[tex]\[ \text{Total Money Raised} = 6n - 50 \][/tex]

So, the expression that represents the money that the group raises is:
[tex]\[ 6n - 50 \][/tex]

Examining the given options:
- Option A: [tex]\(12 - 6n - 50\)[/tex]: This subtracts [tex]\(6n\)[/tex] after subtracting 50, which is incorrect.
- Option B: [tex]\((12 - 6)n - 50\)[/tex]: This simplifies to [tex]\(6n - 50\)[/tex], which matches our derived expression.
- Option C: [tex]\(12n - 6 - 50\)[/tex]: This simplifies to [tex]\(12n - 56\)[/tex], which is incorrect.

Therefore, the correct expression is:

[tex]\[ (12 - 6)n - 50 \][/tex]

Thus, the correct answer is:
[tex]\[ \boxed{(12 - 6)n - 50} \][/tex]