Question

Сколько будет 4,2×(-1/35)+121/169×(-1 2/11)-(-3)×1/25=? Пожалуйста помогите. Спасибо заранее!​

Answer 1

Ответ:

-11/13

Пошаговое объяснение:

4,2*(-1/35)+121/169*(-1 2/11)-(-3)*1/25=21/5*(1/35)+121/169*(-13/11)+3*1/25=-3/5*1/5-11/13+3/25=-11/13

Answer 2

Ответ:

4,2×(-1/35)+121/169×(-1 2/11)-(-3)×1/25

Пошаговое объяснение:

4,2×(-1/35)+121/169×(-1 2/11)-(-3)×1/25

Answer 3

To calculate the expression 4.2 × (-1/35) + 121/169 × (-1 + 2/11) - (-3) × 1/25, we can follow the order of operations (PEMDAS/BODMAS) to simplify the expression step by step.

Step 1: Simplify the multiplication and division within parentheses

- (-1/35) can be simplified to -0.02857142857142857 - (-1 + 2/11) can be simplified to -0.9090909090909091 - (-3) × 1/25 can be simplified to -0.12

Step 2: Perform the multiplications and divisions from left to right

- 4.2 × (-0.02857142857142857) = -0.12 - 121/169 × (-0.9090909090909091) = -0.8181818181818182

Step 3: Perform the additions and subtractions from left to right

- -0.12 + (-0.8181818181818182) = -0.9381818181818182 - -0.9381818181818182 - (-0.12) = -0.8181818181818182

Therefore, the value of the expression 4.2 × (-1/35) + 121/169 × (-1 + 2/11) - (-3) × 1/25 is -0.8181818181818182.

Please note that the answer is rounded to the appropriate number of decimal places.