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  • 18-09-2016
  • Mathematics
contestada

if 45 cookies will serve 15 students,how many cookies are needed for 30 students

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Аноним Аноним
  • 18-09-2016
90 cookies are need for 30 students because 15 is half of 30 so you multiply 45 by 2 to get 90 (or add 45 to 45) 
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anguswever anguswever
  • 18-09-2016
45/15= 3, so thats 3 cookies per student
30x3= 90 so 90 cookies
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