Mathematics, 18.08.2020 02:01, queenkimm26

1 - Na equação x – 2y = 10, qual o valor de y quando x vale 20? * 1 ponto a) 5 b) -5 c) 20 d)-20 2 - Comprei uma bermuda e 2 camisetas por 60 reais. Se a bermuda custou 28 reais, qual o valor de cada camiseta? * 1 ponto a) 28 b) 60 c) 32 d) 16

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1 - Na equação x – 2y = 10, qual o valor de y quando x vale 20? * 1 ponto a) 5 b) -5 c) 20 d)-20 2 -...