This Question: 1 pt 1 of 11
A new photocopier works 2 times as fast as an old one. When the machines
work together, a university can produce all its staff manuals in 24 hr. Find the
time it would take each machine, working alone, to complete the job.
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When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.