SOLUTION: one printing press can print the first edition of a book in 55 mins, whereas a second printing press requires 66 min to print the same number of copies. how long would it take to p

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Question 82984This question is from textbook introductory algebra
: one printing press can print the first edition of a book in 55 mins, whereas a second printing press requires 66 min to print the same number of copies. how long would it take to print the first edition with both presses operating? This question is from textbook introductory algebra

Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
55*66/(55+66)
3630/121=30 minutes to print the book together.