Written 81992

8% of the price of the machine is written off every year. In how many years will the price drop from 250,000 to 150,000?

Correct answer:

n =  6.1264

Step-by-step explanation:

r=100%8%=11008=0.92 a=250000 b=150000  q=b/a=150000/250000=53=0.6  q = rn  ln q = n ln r  n=lnrlnq=ln0.92ln0.6=6.1264

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