Question

calculeaza exercitiul din imagine ​

Answer 1

Răspuns:

20

Explicație:

[1,2 + 1,(3) · 3/20] : 0,14 · 2 =

[1,2 + 13 - 1/9 · 3/20] : 0,14 · 2 =

(6/5 + 12/3 · 1/20) ÷ 7/50 · 2 =

(6/5 + 3/5 · 1/5) · 50/7 · 2 =

(6/5 + 1/5) · 50/7 · 2 =

7/5 · 50/7 · 2 =

1/5 · 50 · 2 =

10 · 2 =

20.

________

1,(3) = 13 - 1 / 9 = 12/9

1.2 = 12/10 = 6/5

0,14 = 14/100 = 7/50

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