Question

1). (-31,7 : 63,4 - 23,4 : (11,7)) * (-2,4)

Answer 1

1) -31,7 : 63,4 = -0,5

2) 23,4 : 11,7 = 2

3) -0,5 - 2 = -2,5

4) -2,5 * (-2,4) = 6

Ответ: 6

Answer 2

To solve this expression, we need to follow the order of operations, also known as PEMDAS:

1. Parentheses
2. Exponents
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's break down the expression:

(-31,7 : 63,4 - 23,4 : (11,7)) * (-2,4)

First, we need to simplify the expression inside the parentheses:

-23.4 : 11.7 = -2

Now we can replace the expression inside the parentheses with the result:

(-31.7 : 63.4 - 2) * (-2.4)

Next, we need to simplify the division:

-31.7 : 63.4 = -0.5

Now we can replace the division with the result:

(-0.5 - 2) * (-2.4)

Next, we need to simplify the subtraction:

-0.5 - 2 = -2.5

Now we can replace the subtraction with the result:

(-2.5) * (-2.4)

Finally, we can simplify the multiplication:

(-2.5) * (-2.4) = 6

Therefore, the answer to the expression (-31,7 : 63,4 - 23,4 : (11,7)) * (-2,4) is 6.