Question

1) (–9,7 + 7,1) : (–4) 2)3 (3-2,1)- (14, 5- 2.8)

Answer 1

Ответ:

1)0,65

2)-9 можно лучший ответ

Answer 2

Ответ:

1 . 2,6

смог только на первое

Пошаговое объяснение:

Answer 3

Let's simplify the given expressions step by step:

1. (–9.7 + 7.1) ÷ (–4)

First, calculate the addition inside the parentheses: (-9.7 + 7.1) = -2.6

Now, divide -2.6 by -4: (-2.6) ÷ (-4) = 0.65

So, the result of the first expression is 0.65.

2. 3(3 - 2.1) - (14.5 - 2.8)

First, calculate the subtraction inside the parentheses: 3(3 - 2.1) = 3(0.9) = 2.7

Now, calculate the subtraction in the second set of parentheses: 14.5 - 2.8 = 11.7

Now, subtract the result of the second set of parentheses from the result of the first set: 2.7 - 11.7 = -9.0

So, the result of the second expression is -9.0.