How do I prepare these journal entries?

How to prepare journal entries for this problem?!? On July 23 of the current year, Justin Mining Company pays?

• How to prepare journal entries for this problem?!? On July 23 of the current year, Justin Mining Company pays $4,836,000 for land estimated to contain 3,900,000 tons of recoverable ore. It installs machinery costing $390,000 that has a 10-year life and no salvage value and is capable of mining the ore deposit in eight years. The machinery is paid for on July 25, seven days before mining operations begin. The company removes and sells 300,000 tons of ore during its first five months of operations. Depreciation of the machinery is in proportion to the mine's depletion as the machinery will be abandoned after the ore is mined. a. to record purchase of the land b. to record the cost and installation of machinery c. to record the first five month's depletion assuming the land has a net salvage value of zero after the ore is mined. d. to record the first five month's depreciation on machinery.

• Answer:

  As the duration of the mining is 8 years the depreciation rate is 10 / 8 = 12.5% same rate should be applied for land and machinery even though the machinery is having life o 10 years it should be depreciated fully in 8 years as the ore will be nil at the end of 8 years. a) Land DR $ 4,836,000 Cash CR $ 4,836,000 b) Machinery DR $ 3,900,000 Cash CR $ 3,900,000 c) 4,836,000 / 12.5 x 5 /12 =161200 Depreciation Land DR $161200 Land CR $161200 d) 390000 /12.5 x5 /12 =13,000 Depreciation machinery DR $13,000 Machinery CR $13,000