Question

1.(33,77 : 1,1 + 1,242:0,27) 2,6 - 3,27.
2.(1,24 - х) 3,6=3,888;
3.25 - х:1,5 = 4,2.

Answer 1

Ответ:

1

$(\frac{33.77}{1.1} + \frac{1.242}{0.27} ) \times 2.6 - 3.27 = \\ = (30.7 + 4.6) \times 2.6 - 3.27 = \\ = 35.3 \times 2.6 - 3.27 = \\ = 91.78 - 3.27 = 88.51$

2

$3.6(1.24 - x) = 3.888 \\ 1.24 - x = 1.08 \\ x = 0.16$

3

$25 - \frac{x}{1.5} = 4.2 \\ x = 37.5 - 6.3 \\ x = 31.2$