the fraction left after n pages is
p(n) = 0.995^(n/10)
Now you can use that to answer the other two parts.
Use logarithms for these questions
After every 10 pages of painting, the ribbon in the dot matrix printer loses about 0.5% of its ink.
A) What percent of the ink is left in the ribbon after printing 100 pages and 1000 pages
B) write an equation which expresses the percent p of ink left in the ribbon as a function of the number n of pages printed.
c) Approximately how many pages can be printed before the ink content is reduced to 75% of its original content?
1 answer