
Hannah S. answered 04/06/20
Mechanical Engineer with 4+ Years of Tutoring Math
In order to figure out how many packages per minute, we first need to figure out how many minutes are in a 4.5 hour period.
There are 60 min/1 hour so 4.5hr*60minutes=270 minutes
From there divide the number of packages 7779 by the number of minutes 270
7779/270=28.81 packages scanned every minute