Question

-4,9+(-5,7) 7,2+(-5) -9-11 5-10,2 -6•2,5 -7,5:(-5)

Answer 1

Ответ:

-10,6

2,2

-20

-5,2

-15

1,5

Answer 2

Let's solve each of these mathematical expressions step by step:

1. -4 + 9 + (-5.7) = (-4 + 9) + (-5.7) = 5 + (-5.7) = -0.7

2. 7.2 + (-5) = 7.2 - 5 = 2.2

3. -9 - 11 = -20

4. 5 - 10.2 = -5.2

5. -6 * 2.5 = -15

6. -7.5 / (-5) When dividing by a negative number, the result is positive. = 7.5 / 5 = 1.5

So, the results are as follows:

1. -0.7
2. 2.2
3. -20
4. -5.2
5. -15
6. 1.5