Question

3. (-7,4 + 2,6).(-2,5) -3,8 + 1,2. 4. (-24,3): (4,5 - 4,5.(-0,8)) :(-0,25). 5*. 9,57 .(-0,4 + 6,07) - 6,07. (9,57 -0,4).

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Let's break down each expression step by step:

3. $(-7.4 + 2.6) \times (-2.5) - 3.8 + 1.2 \times 4$ $= (-4.8) \times (-2.5) - 3.8 + 4.8$ $= 12 + 3.8 + 4.8$ $= 20.6$

4. $(-24.3) ÷ (4.5 - 4.5 \times (-0.8)) ÷ (-0.25)$ First, let's simplify the inner expression: $4.5 \times (-0.8) = -3.6$ $4.5 - 3.6 = 0.9$

Now the expression becomes: $-24.3 ÷ 0.9 ÷ (-0.25)$ $= -27 ÷ (-0.25)$ $= 108$

5. $9.57 \times (-0.4 + 6.07) - 6.07 \times (9.57 - 0.4)$ First, simplify the terms inside the parentheses: $-0.4 + 6.07 = 5.67$ $9.57 - 0.4 = 9.17$

Now the expression becomes: $9.57 \times 5.67 - 6.07 \times 9.17$ $= 54.394 - 55.5739$ $= -1.1799$

So, the simplified values for the given expressions are: $3. \: 20.6$ $4. \: 108$ $5. \: -1.1799$