Question

1,8+(2/5-3,4)*0,8:0,5

Answer 1

Ответ:

-3

Объяснение:

1,8 + (0,4 - 3,4) * 0,8 : 0,5

1) 0,4 - 3,4 = -3

2) -3 * 0,8 = -2,4

3) -2,4 : 0,5 = -4,8

4) 1,8 + (-4,8) = -3

Answer 2

To solve this expression, you should follow the order of operations, which is typically represented by the acronym PEMDAS:

1. P: Parentheses
2. E: Exponents
3. MD: Multiplication and Division (from left to right)
4. AS: Addition and Subtraction (from left to right)

Let's break down your expression step by step:

1,8 + (2/5 - 3,4) * 0,8 / 0,5

First, let's deal with the parentheses:

2/5 - 3,4 = -3.4 (Note: I've converted the comma to a decimal point for consistency in calculations)

Now, we have:

1,8 + (-3.4) * 0,8 / 0,5

Next, let's perform the multiplication and division from left to right:

(-3.4) * 0,8 = -2.72 -2.72 / 0,5 = -5.44

Now, we have:

1,8 + (-5.44)

Finally, perform the addition:

1,8 + (-5.44) = -3.64

So, the value of the expression is -3.64.