SOLUTION: There were 30 absences from Fahid's electronics class during the first week. Absenteeism dropped steadily to 6 absences during the ninth week. Estimate the number of absences durin

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: There were 30 absences from Fahid's electronics class during the first week. Absenteeism dropped steadily to 6 absences during the ninth week. Estimate the number of absences durin      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 380171: There were 30 absences from Fahid's electronics class during the first week. Absenteeism dropped steadily to 6 absences during the ninth week. Estimate the number of absences during the fourth week.
I think the answer is 16, but I am unsure how to set up a function for this problem. thanks!
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
over an 8 week period , the number of absences declined by 24
3 fewer absences per week

during the 4th week (3 weeks after the 1st week) you would expect 9 fewer absences than the 1st week

a = 33 - 3w ___ a is the number of absences , and w is the week