Question

(-3.1+5.8+2.3)+(-5.5)

Answer 1

Ответ: -0,5

Пошаговое объяснение: удачи...

(-3.1+5.8+2.3)+(-5.5)=-0,5

1) -3,1+5,8=5,8-3,1=2,7

2) 2,7+2,3=5

3) 5+(-5,5)=5-5,5=-0,5

Answer 2

(-3.1 + 5.8 + 2.3) + (-5.5) is a mathematical expression that involves addition and subtraction. To solve it, we need to follow the order of operations, which states that we should perform any calculations inside parentheses first, then perform addition and subtraction from left to right.

Let's start by adding the numbers inside the parentheses: -3.1 + 5.8 + 2.3 = 4.7

Now, we can rewrite the expression as: 4.7 + (-5.5)

To add a positive number and a negative number, we subtract the absolute values and keep the sign of the larger number. In this case, the absolute value of 4.7 is larger than the absolute value of -5.5, so the result will be positive and equal to the difference of their absolute values: 4.7 - 5.5 = -0.8

Therefore, the final answer is -0.8.