tania0114 tania0114

02-11-2018
Mathematics

contestada

predict the time needed to deliver 72 papers at a rate of 9 papers in 18 min

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salatulmaghrib salatulmaghrib

02-11-2018

Notice that the number of minutes is double the number of papers. So, 72 papers will take 72*2=144 minutes to deliver. 144 minutes = 2 hours and 24 minutes.

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