Question

(-2/1+5/1)+(2,7-2,8)=?​

Answer 1

Ответ:

2.9

Пошаговое объяснение:

3+(-0,1)=3-0,1=2,9

Answer 2

Ответ:2,9

Пошаговое объяснение:

(-2/1+5/1)+(2,7-2,8)=(5-2)+(-0,1)=3-0,1=2,9

Answer 3

Let's solve this step by step:

1. Simplify the fractions inside the parentheses: -2/1 + 5/1 = -2 + 5 = 3

2. Subtract the decimal numbers inside the second set of parentheses: 2.7 - 2.8 = -0.1

3. Add the results from step 1 and step 2: 3 + (-0.1) = 2.9

So, the final result of the expression (-2/1 + 5/1) + (2.7 - 2.8) is 2.9.