math
posted by wilton on .
From the following information, determine the average yearly depreciation. Choose the right answer.
Cost of used car = $3,000.00
Years driven = 6
Tradein value =$1,250.00
Average yearly depreciation

3000 r^6 = 1250
r^6 = .416666...
r = .416666...^(1/6)
r = .864
so the annual rate of depreciation was
1  .864 = .136 or 13.6%
you did not list your choices.