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the officejet printer can copy lisa's dissertation in 18 min. the laserjet printer can copy the same document in 20 min. if the...Asked by karon
the office jet printer can copy maria's dissertation in 16 min. the jet printer can copy the same document is 8 min if the two machines work together how long would they take to copy the dissertation
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Answered by
drwls
Combined rate
= 1/16 dis/min + 1/8 dis/min
= 3/16 dis/min
(3/16)*T = 1 dissertation
T = 16/3 = 5.33 minutes
= 1/16 dis/min + 1/8 dis/min
= 3/16 dis/min
(3/16)*T = 1 dissertation
T = 16/3 = 5.33 minutes
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