48. Straight-line depreciation on the machine for 20X4 is 49. If straight-line depreciation is used, the book value at the end of 20X5 is llowing data to answer Questions 48 through 50. A machine with a cost of $33,000 and residual value of $3,000 is estimated to have a useful life of five years or 15.000 operating hours. The machine was purchased on January 1, 20X4 c. $10,000 D. $11,000 A $6,000 B. $6,600 A. $18,000 B. $12,000 C. $21,000 D. $24,000 50. Assume the machine was operated for 2,000 hours during 20x6. Units of production depreciation for 20X4 would be A. $4,400 B. $6,600 c. D. $6,000 $4,000