romeliasantos9p10vro
romeliasantos9p10vro romeliasantos9p10vro
  • 20-12-2017
  • Mathematics
contestada

If the teacher assistant can grade papers in one hour and with the teacher's help they finish in 20 minutes how many minutes would it take the teacher to grade the papers?

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dakodadodge
dakodadodge dakodadodge
  • 20-12-2017
it will take the teacher 1 hour
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