SOLUTION: It takes a computer 8 days to print all of the personalized letters. A new computer is purchased that can do the same job in 5 days. How long would it take to do the job with bot

SOLUTION: It takes a computer 8 days to print all of the personalized letters. A new computer is purchased that can do the same job in 5 days. How long would it take to do the job with bot

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Question 372734: It takes a computer 8 days to print all of the personalized letters. A new computer is purchased that 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 checkley79(3341) (Show Source): You can put this solution on YOUR website!
1/8+1/5=1/X
(5+8)/5*8=1/X
13/40=1/X
13X=40
X=40/13
X=3.08 DAYS WORKING TOGETHER.
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