mrsgrint mrsgrint
  • 03-04-2017
  • Mathematics
contestada

i need help for questions 1-3

i need help for questions 13 class=

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Аноним Аноним
  • 04-04-2017
A: 342= c + a
B: 2550= (342-c)*12+(342-a)*5
(b is the best i could do, but a is correct in my opinion)
C: I do not understand what it means by method of elimination, seen as though I was never taught this

Glad I could help
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