Question

-5, 3 * 0 ,2-0,2*7+1,7*(-0,2)+3,8:2.

Answer 1

-5 + 3 * 0.2 - 0.2 * 7 + 1.7 * (-0.2) + 3.8 / 2 =

-5 + 0.6 - 1.4 - 0.34 + 1.9 =-3.24

Отже, відповідь -3,24.

Answer 2

Ответ: -0,9

Пошаговое объяснение:

1) -5,3*0,2= -1,06

2) 0,2*7= 1,4

3) 1,7* (-0,2)= -0,34

4) 3,8:2= 1,9

5) -1,06-1,4= -2,46

6) -2,46 +(-0,34)= -2,8

7) -2,8+1,9= -0,9

Answer 3

Let's calculate the expressions step by step:

1. -5: This is just the number -5.

2. 3 * 0: Multiplying any number by 0 results in 0. So, 3 * 0 = 0.

3. 2 - 0: Subtracting 0 from any number doesn't change the number. So, 2 - 0 = 2.

4. 2 * 7 + 1: First, multiply 2 by 7 to get 14, then add 1 to it. So, 2 * 7 + 1 = 14 + 1 = 15.

5. 7 * (-0.2) + 3: Multiply 7 by -0.2 to get -1.4, then add 3 to it. So, 7 * (-0.2) + 3 = -1.4 + 3 = 1.6.

6. 8 ÷ 2: Divide 8 by 2 to get 4. So, 8 ÷ 2 = 4.

So, the values of the expressions are:

1. -5
2. 0
3. 2
4. 15
5. 1.6
6. 4