Question

2)-4,8+(-5,2). 4)4,7+ (-4,7).​

Answer 1

Ответ:

2) -4,8+(-5,2)= -(4,8+5,2)= -10

4) 4,7+(-4,7)= 0

Answer 2

To solve these arithmetic expressions, you need to perform the operations indicated. The numbers given in the format "a,b" are actually two separate numbers: "a" and "b."

Let's solve the expressions step by step:

2. -4,8 + (-5,2):

To add two numbers, you add their corresponding parts separately. In this case, you'll add the first number (-4) with the negative of the second number (-5) and the second number (8) with the second part of the second number (2).

-4 + (-5) = -9 (adding the first parts) 8 + 2 = 10 (adding the second parts)

So, the result of the expression -4,8 + (-5,2) is -9,10.

4. 4,7 + (-4,7):

Using the same logic as above, you'll add the first part of the first number (4) with the first part of the second number (-4) and the second part of the first number (7) with the second part of the second number (7).

4 + (-4) = 0 (adding the first parts) 7 + 7 = 14 (adding the second parts)

Thus, the result of the expression 4,7 + (-4,7) is 0,14.

Therefore, the final results are: -4,8 + (-5,2) = -9,10 4,7 + (-4,7) = 0,14