Question

(20-22,05/2,1)-6,4+9,2​

Answer 1

Ответ:12,3

Пошаговое объяснение:

(20-21/2)-6,4+9,2

19/2-6,4+9,2

9,5-6,4-9,2

=12,3

Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

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

Let's apply these steps to the given expression:

(20-22,05/2,1) - 6,4 + 9,2

Step 1: Evaluate the expression inside the parentheses first: 20 - (22.05 / 2.1)

Step 2: Perform the division: 20 - 10.5

Step 3: Perform the subtraction: 9.5

Step 4: Now, add the next two numbers: 9.5 - 6.4 + 9.2

Step 5: Perform the remaining subtraction and addition: (9.5 - 6.4) + 9.2 3.1 + 9.2

Step 6: Finally, add the two numbers together: 12.3

The result of the expression is 12.3.