5. A corporation has 10 members on its board of directors. In how many different ways can it elect a president, vice president, and treasurer? Circle one: Counting Principle Permutation Combination Set Up: Answer:

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### Problem 5: Election Combinations

A corporation has 10 members on its board of directors. In how many different ways can it elect a president, vice president, and treasurer?

#### Concepts:

**Circle one:** Counting Principle  |  **Permutation**  |  Combination

#### Solution Setup:

1. Determine if the order matters. Since the positions of president, vice president, and treasurer are distinctly different, the order of election is important. This calls for the use of permutations.

2. Set Up: 
   To find the number of permutations of selecting 3 positions from 10 members, use the formula for permutations \( P(n, r) \):
   \( P(n, r) = n! / (n-r)! \)
   where \( n = 10 \) and \( r = 3 \).

3. Calculation:
   \[
   P(10, 3) = \frac{10!}{(10-3)!} = \frac{10!}{7!} = 10 \times 9 \times 8
   \]
4. Compute the value:
   \[
   10 \times 9 \times 8 = 720
   \]

#### Answer:
   The number of different ways to elect a president, vice president, and treasurer is: **720**

---

This problem requires an understanding of basic permutation concepts, where the positions are distinct and the order of selection is crucial. The solution entails setting up the appropriate formula for permutations and calculating the final number of ways to elect the officials.
Transcribed Image Text:### Problem 5: Election Combinations A corporation has 10 members on its board of directors. In how many different ways can it elect a president, vice president, and treasurer? #### Concepts: **Circle one:** Counting Principle | **Permutation** | Combination #### Solution Setup: 1. Determine if the order matters. Since the positions of president, vice president, and treasurer are distinctly different, the order of election is important. This calls for the use of permutations. 2. Set Up: To find the number of permutations of selecting 3 positions from 10 members, use the formula for permutations \( P(n, r) \): \( P(n, r) = n! / (n-r)! \) where \( n = 10 \) and \( r = 3 \). 3. Calculation: \[ P(10, 3) = \frac{10!}{(10-3)!} = \frac{10!}{7!} = 10 \times 9 \times 8 \] 4. Compute the value: \[ 10 \times 9 \times 8 = 720 \] #### Answer: The number of different ways to elect a president, vice president, and treasurer is: **720** --- This problem requires an understanding of basic permutation concepts, where the positions are distinct and the order of selection is crucial. The solution entails setting up the appropriate formula for permutations and calculating the final number of ways to elect the officials.
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