Answer:
$ 4,748
Step-by-step explanation:
The depreciation expenses =
![$(\$ 15000 * 17.85 \%) + (\$ 6000 * 10.71 \%)+(\$ 40000 * 3.57 \%)$](https://img.qammunity.org/2022/formulas/business/college/faz6cm0v525vwbff6cu5mqx5evfr0kt7or.png)
![$= \$ 2677.50 + \$ 642.6 + \$ 1428$](https://img.qammunity.org/2022/formulas/business/college/8m84xsguwkk24i1j8d10mp8w8dz6fitye6.png)
= $ 4748
Generally we have use half year convention for assets that are purchased during the year but here we used the mid quarter as of more than the 40% of the assets are being purchased in last quarter of the year
![$=\frac{\text{assets purchased in last quarter}}{\text{total assets purchased in the year}} * 100$](https://img.qammunity.org/2022/formulas/business/college/l2owgfzo2770xs3nkqy9be283fwnmhyy47.png)
![$=(40000)/(61000) * 100$](https://img.qammunity.org/2022/formulas/business/college/e7pn2fnd7v8h8ga3zeowmf2yl0f8ddo5oj.png)
(it is more than 40%)
Thus we can use the mid quarter mars depreciation rates for the 7 years assets that are purchased this year.