Question

1,4×3,6÷0,2-4,2 ---------------- 3 1 - - 4 -÷0,2- - 4

Answer 1

1)
(14/10)*(36/10)/(2/10)-(42/10)
7*(36/10)-(42/10)
(7*36/10)-(42/10)=252-42/10=21

2)
(3/4)/(2/10)-(1/4)
(15/4)-(1/4)=14/4=7/2=3,5

Answer 2

А)21
б)3,5
или надо развёрнуто?

Answer 3

To solve the expression, let's break it down step by step:

1. Multiply: 1.4 × 3.6 = 5.04

2. Divide: 5.04 ÷ 0.2 = 25.2

3. Subtract: 25.2 - 4.2 = 21

4. Divide: 21 ÷ 3 = 7

5. Subtract: 7 - 1 = 6

6. Subtract: 6 - 4 = 2

7. Divide: 2 ÷ 0.2 = 10

8. Subtract: 10 - 4 = 6

Therefore, the result of the expression 1,4×3,6÷0,2-4,2 ---------------- 3 1 - - 4 -÷0,2- - 4 is 6.