lisacassandra lisacassandra
  • 09-11-2016
  • Mathematics
contestada

a machine makes 300 boxes in 15 minutes. Which expression equals the unit rate in boxes per hour?

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Cmanbing
Cmanbing Cmanbing
  • 09-11-2016
so 300b=15 min, in an hour (15x4) 1200 boxes will be made (300x4) 
so 1200 boxes per hour
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136077
136077 136077
  • 09-11-2016
15x=300 X= hours! There are 20 Hours
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