gymnast473
gymnast473 gymnast473
  • 19-09-2016
  • Mathematics
contestada

plz help me plz!!!!!(

plz help me plz class=

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Аноним Аноним
  • 19-09-2016
a. 15 × 1 1/2= 15/1 × 3/2= 45/2= 2 2/5

b.15min +1extra minute=16min. × 15 students =240min so no not enough time
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