ifineedhelphelpme ifineedhelphelpme
  • 14-01-2016
  • Mathematics
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help me please guys!!!

help me please guys class=

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LiteNyte
LiteNyte LiteNyte
  • 14-01-2016
I assume you're asking about #19? 
24 students total, teacher gives each PAIR of students 3 magnets. 
There are 12 pairs of students, then, and the teacher has given 9 of those pairs their 3 magnets, leaving 3 pairs without their magnets.
3 pairs remaining to get 3 magnets (3*3=9) 
The teacher needs 9 more magnets.
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