Question

copie e complete o quadro a seguir com valores numericos destas expressões ​

Answer 1

Resposta:

x=2

2×2+30

4+30=34

15×2=30

x=2,5

2×2,5+30

5+30=35

15×2,5=37,5

x=3

2×3+30

6+30=36

15×3=45

x=4,5

2×4,5+30

9+30=39

15×4,5= 67,5

x=8,2

2×8,2+30

16,4+30=46,4

15×8,2=123

x=12

2×12+30

24+30=56

15×12=180