Answer:
1. Depreciation per mile is $1
2.The book value of the truck at 30,000 miles is $50,000
Step-by-step explanation:
Depreciation per mile = (Cost of truck - Salvage value)/Life in Number of miles
The truck has cost of $80,000 and salvage value of $5,000. It is also expected to run for 75,000 miles.
Therefore,
Depreciation per mile = ($80,000 - $5,000)/75,000 = $75,000/75,000 = $1
Accumulated Depreciation at 30,000 miles = 30,000 x $1 = $30,000
The book value of the truck = Cost of the truck - Accumulated Depreciation
At 30,000 miles,
The book value of the truck = $80,000 - $30,000 = $50,000