Sharita does a special typing jobs for scientist. she charges $16 for the first 3 pages and $3 for each additional page of scientific typing. sonia, a biologist, paid $106 to have a research paper typed how many pages long was sonia's paper?

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Answer 1 · 2018-06-19T13:53:15

#"No. of pages typed" = n = "33 pages"#.

Let total no. of pages typed by Sharita be ‘n’.

Total amount collected #=$106#

Cost for first three pages #= $ 17#

Additional charge per page #= $ 3#

# 16 + (n-3)*3 = 106#

#3n - 9 = 106 - 16 = 90#

#3n = 90 + 9 = 99#

#:. # No. of pages typed #= n = 99/3 = 33# pages.