1. **State the problem:** Priya has 5 pencils, each of length $x$ inches. When lined up end to end, their total length is 34.5 inches.
2. **Formulate the equation:** Since there are 5 pencils each of length $x$, the total length is $5 \times x$.
3. **Write the equation:**
$$5x = 34.5$$
4. **Check the options:**
- A. $5 + x = 34.5$ (Incorrect, addition is not the right operation here)
- B. $5x = 34.5$ (Correct, multiplication represents total length)
- C. $34.5 \div 5 = x$ (Correct, dividing total length by number of pencils gives length of one)
- D. $34.5 - 5 = x$ (Incorrect, subtraction is not appropriate)
- E. $x = (34.5) \cdot 5$ (Incorrect, this would give a length 5 times too large)
5. **Solve for $x$:**
$$x = \frac{34.5}{5}$$
6. **Simplify:**
$$x = \cancel{\frac{34.5}{\cancel{5}}} = 6.9$$
7. **Interpretation:** Each pencil is 6.9 inches long.
**Final answer:**
$$x = 6.9$$
Pencil Length D364Db
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