SOLUTION: It takes a computer 8 days to print all the letters. A new computer can do the same job in 5 days. How long would it take to do the job with both computers working on it?

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: It takes a computer 8 days to print all the letters. A new computer can do the same job in 5 days. How long would it take to do the job with both computers working on it?      Log On


   

Question 396769: It takes a computer 8 days to print all the letters. A new computer can do the same job in 5 days. How long would it take to do the job with both computers working on it?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Let x represent the days it would take with both computers working on it

Question states***per day the Equalizer

 1/8 + 1/5 = 1/x  |mulitplying each term by 40x so as all denominators = 1

 5x + 8x = 40

    13x = 40

      x = 40/13 = 3.0769 days with both computers working on it