Question

Verifique qual dos Pares ordenados,corresponde a 3x+2y=16
a) (2;5)
b) (4,3)
c) (4,4)
d) (3,5)
e) (2,4)

Answer 1

3x + 2y = 16

x = 2; y = 5
3.2 + 2.5 = 6 + 10 = 16  (letra A)
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3x + 2y = 16

b)
3.4 + 2.3 = 12 + 6 = 18 (falso)

c)
3.4 + 2.4 = 12 + 8 = 20 (falso)

d)
3.3 + 2.5 = 9 + 10 = 19 (falso)

e)
3.2 + 2.4 = 6 + 8 = 14 (falso)

Answer 2

$a)3.2+2.5=16?--\ \textgreater \ 6+10=16?sim$ $b)3.4+2.3=16?--\ \textgreater \ 12+6=16?nao$ $c)3.4+2.4=16?--\ \textgreater \ 12+8=16?nao$ $d)3.3+2.5=16?--\ \textgreater \ 9+10=16?nao$ $e)3.2+2.4=16?--\ \textgreater \ 6+8=16?nao$