Annuity Due
1. **State the problem:** We want to find the annual deposit amount made at the beginning of each year into an account with 5% annual interest, compounded annually, so that after 9 years the account balance is 32000.
2. **Formula used:** Since deposits are made at the beginning of each year, this is an annuity due problem. The future value of an annuity due is given by:
$$FV = P \times \frac{(1 + r)^n - 1}{r} \times (1 + r)$$
where:
- $FV$ is the future value (32000),
- $P$ is the annual deposit,
- $r$ is the interest rate per period (0.05),
- $n$ is the number of periods (9).
3. **Rearrange to solve for $P$:**
$$P = \frac{FV}{\frac{(1 + r)^n - 1}{r} \times (1 + r)}$$
4. **Calculate intermediate values:**
Calculate $(1 + r)^n$:
$$ (1 + 0.05)^9 = 1.05^9 \approx 1.551328216 $$
Calculate numerator of fraction:
$$ (1.551328216 - 1) = 0.551328216 $$
Calculate fraction:
$$ \frac{0.551328216}{0.05} = 11.02656432 $$
Multiply by $(1 + r)$:
$$ 11.02656432 \times 1.05 = 11.57789254 $$
5. **Calculate $P$:**
$$ P = \frac{32000}{11.57789254} \approx 2763.89 $$
6. **Interpretation:** You must deposit approximately 2763.89 at the beginning of each year to have 32000 at the end of 9 years with 5% interest compounded annually.
**Final answer:**
$$\boxed{2763.89}$$