piper2007 piper2007

11-03-2020
Mathematics

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Nicholas cleaned his room in 1/10 of an hour. Gloria cleaned her room in 3 minutes and 18 seconds. How many seconds longer did it take Nicholas

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ellaannebauer ellaannebauer

11-03-2020

162 seconds

1 hour = 60 minutes

1 minute = 60 seconds

60 x 1/10 = 6

6 x 60 = 360

3 x 60 = 180 + 18 = 198

360 - 198 = 162

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