Question

-2,69*(-0,8)+0,7*(4,3-7,8 По действиям)

Answer 1

Ответ:

-2,69×(-0,8)+0,7×(4,3-7,8) = 2,152+0,7×(-3,5) = 2,152-2,45 = -0,298 = -149/500

Answer 2

Let's break down the expression step by step:

$-2.69 \times (-0.8) + 0.7 \times (4.3 - 7.8)$

1. Multiply $-2.69$ by $-0.8$:

$-2.69 \times (-0.8) = 2.152$

2. Subtract $7.8$ from $4.3$:

$4.3 - 7.8 = -3.5$

3. Multiply $0.7$ by the result from step 2:

$0.7 \times (-3.5) = -2.45$

4. Add the results from steps 1 and 3:

$2.152 + (-2.45) = -0.298$

So, the value of the expression is $-0.298$.