SOLUTION: If it takes a crew 9 days to do 80% of the job, how many more days will it take to finish the job 100%

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If it takes a crew 9 days to do 80% of the job, how many more days will it take to finish the job 100%      Log On


   

Question 1036966: If it takes a crew 9 days to do 80% of the job, how many more days will it take to finish the job 100%
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Their rate of working is:
+.8+%2F+9+ jobs / days
Divide top and bottom by +.8+
+1+%2F+11.25+ jobs / days
+11.25+-+9+=+2.25+
The job can be finished in 2.25 days