A company buys a copier for $10,000. The value of the copier is $10,000(1-n/20) after n years. After how many years will the value of the copier be $6,500?
really? Just solve
10000(1 - n/20) = 6500
1 - n/20 = 0.65 = 13/20
Now finish it off
10000(1 - n/20) = 6500
1 - n/20 = 0.65 = 13/20
Now finish it off