1. **State the problem:** We have a biased spinner with 5 colors: pink, green, red, yellow, and blue.
2. **Given probabilities:**
- Pink: 0.14
- Green: 0.23
- Red: 2x
- Yellow: 0.18
- Blue: 7x
3. **Total probability rule:** The sum of all probabilities must equal 1.
$$0.14 + 0.23 + 2x + 0.18 + 7x = 1$$
4. **Combine like terms:**
$$0.14 + 0.23 + 0.18 + 2x + 7x = 1$$
$$0.55 + 9x = 1$$
5. **Solve for $x$:**
$$9x = 1 - 0.55$$
$$9x = 0.45$$
$$x = \frac{0.45}{9}$$
$$x = 0.05$$
6. **Find the probability of blue:**
$$P(blue) = 7x = 7 \times 0.05 = 0.35$$
7. **Expected number of times blue lands in 500 spins:**
$$\text{Expected} = 500 \times 0.35 = 175$$
**Final answer:** The spinner is expected to land on blue 175 times out of 500 spins.
Expected Blue 066C9E
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