Question
A new photocopier works 4 times as fast as an old one. Whenthe machines work together, a university can produce all its staffmanuals in 20
A new photocopier works 4 times as fast as an old one. Whenthe machines work together, a university can produce all its staffmanuals in 20 hr. Find the time it would take each machine,working alone, to complete the job.
A new photocopier works 4 times as fast as an old one. Whenthe machines work together, a university can produce all its staffmanuals in 20 hr. Find the time it would take each machine,working alone, to complete the job.
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Precalculus
Authors: Braja M Das, David Cohen, Theodore B Lee, David Sklar
7th Edition
1133386482, 9781133386483
