Question

(2,1:2-1,5)*(-5/9):(-0,15)​

Answer 1

(1,05 - 1,5) * (-5/9) : (-0,15)
(-9/20) * (-5/9) : (-3/20)
-1/20 * 5 * 20/3
-5 * 1/3
-5/3

Answer 2

Ответ:

-1 2/3

Пошаговое объяснение:

(2,1:2-1,5)*(-5/9):(-0,15)=-1 2/3

2,1:2=1,05

1,05-1,5=-0,45

-5/9:(-0,15)=-5/9*100/15=100/27

-45/100*100/27=-45/27=-5/3=-1 2/3

Answer 3

To evaluate the expression (2,1:2-1,5)*(-5/9):(-0,15), let's break it down step by step:

1. Start with the first part of the expression, (2,1:2-1,5). The notation "2,1:2-1,5" suggests a range of values from 2.1 to 2.5, excluding both endpoints. To calculate the range, we subtract the lower endpoint from the upper endpoint: 2.5 - 2.1 = 0.4.

2. Next, we move to the second part of the expression, (-5/9). This is a simple fraction that represents -5 divided by 9: -5/9 ≈ -0.5556.

3. Now, we perform the division between the results of step 1 and step 2: 0.4 / (-0.5556) ≈ -0.7196.

4. Lastly, we consider the final part of the expression, (-0,15). It seems like there might be a typo in the notation, as there is a comma instead of a decimal point. Assuming it should be a decimal point, we interpret it as -0.15.

5. Finally, we divide the result from step 3 by -0.15: -0.7196 / (-0.15) ≈ 4.796.

Therefore, the result of the expression (2,1:2-1,5)*(-5/9):(-0,15) is approximately 4.796.