aa101
aa101 aa101
  • 13-05-2018
  • Mathematics
contestada

Need help with 13,
I don’t get it :/

Need help with 13 I dont get it class=

Respuesta :

trainboxcar20 trainboxcar20
  • 13-05-2018
USE SUBSTITUTION FOR 3A+4S=57, 2A+8S=86 to find adult=$7 student=$9
CHECK STEP: 3(7)+4(9)=57
21+36=57 TRUE

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