1. **State the problem:** Solve for the interest rate $r$ in the equation $$1000(1+r)^{10} = 2000.$$
2. **Rewrite the equation:** Divide both sides by 1000 to isolate the exponential term:
$$ (1+r)^{10} = \frac{2000}{1000} = 2.$$
3. **Apply the 10th root:** To solve for $1+r$, take the 10th root of both sides:
$$ 1+r = 2^{\frac{1}{10}}.$$
4. **Calculate $r$:** Subtract 1 from both sides:
$$ r = 2^{\frac{1}{10}} - 1.$$
5. **Evaluate the expression:** Using a calculator or approximation,
$$ 2^{0.1} \approx 1.0718,$$
so
$$ r \approx 1.0718 - 1 = 0.0718.$$
**Final answer:**
$$ r \approx 0.0718,$$ which means the interest rate is approximately 7.18%.
Compound Interest Rate 8E60D9
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