Question

4)|49,2 - 50|:|-0,4|и|201-401|×0,1​

Answer 1

1) |49,2-50|:|-0,4|=|-0,8|:|-0,4|=0,8:0,4=2

2) |201-401|*0,1=|-200|*0,1=200*0,1=20

Answer 2

To solve this expression, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right). In this expression, you don't have any parentheses or exponents, so you can proceed with multiplication and division from left to right and then finish with addition and subtraction from left to right:

1. First, calculate the absolute values and multiplications/divisions:

   |49,2 - 50| = |-0.8| = 0.8 (absolute value of the difference)

   |201 - 401| = |-200| = 200 (absolute value of the difference)

   Now, your expression looks like this:

   0.8 ÷ 0.4 and 200 × 0.1

2. Next, perform the division and multiplication from left to right:

   0.8 ÷ 0.4 = 2 (0.8 divided by 0.4 equals 2)

   200 × 0.1 = 20 (200 multiplied by 0.1 equals 20)

3. Finally, calculate the last operation, which is subtraction:

   2 - 20 = -18

So, the final result of the expression is -18.