patricemattison patricemattison
  • 22-07-2017
  • Mathematics
contestada

A computer printer can print a 640-word document in 30 seconds. At this rate, how many seconds are required to print a document that contains 855 words?

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clee07
clee07 clee07
  • 22-07-2017
The unit rate is 21.3333333333333333. So, the printer can print 21.3333333 word doc in 1 sec
21.3333333333333333*855=18240
hope this helps:)

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