Question

(-1,42-(3,22)÷(0,4)+0,8×(-7)

Answer 1

Ответ:

-15.07

Пошаговое объяснение:

сначала убрать все скобки кроме (-7)

потом разделить все числа

и умножить все числа

потом вычислить сумму отрицательных чисел

-1,42 -8,05 -5,6

Answer 2

It seems like you've provided a mathematical expression that needs to be evaluated. Let's break it down step by step:

Expression: (-1,42 - (3,22) / (0,4) + 0,8 * (-7))

It seems like you're using commas instead of decimal points, which might be causing confusion. In mathematical notation, decimal points are used to separate the whole number part from the decimal part. I'll assume that the commas are meant to be decimal points and provide you with the calculation using the correct notation:

Expression: (-1.42 - (3.22) / (0.4) + 0.8 * (-7))

Now let's evaluate it step by step:

1. First, perform the division inside the parentheses: (3.22) / (0.4) = 8.05

2. Next, perform the multiplication: 0.8 * (-7) = -5.6

3. Substitute the results back into the expression: -1.42 - 8.05 + (-5.6)

4. Finally, perform the remaining additions and subtractions: -1.42 - 8.05 - 5.6 = -15.07

So, the result of the expression is approximately -15.07.