Question

3,8-4,2:1/7 решитееееееееее

Answer 1

3,8-4,2:(1/7)=

3,8-4,2*7=

3,8-29,4=

-(29,4-3,8)=

-(26,4-0,8)=-25,6 - это ответ.

Answer 2

Ответ:

-128/5 или -25,6

Пошаговое объяснение:

3,8-4,2÷1/7

19/5-21/5*7

19/5-147/5

Answer 3

To solve the expression 3.8 - 4.2 ÷ 1/7, follow the order of operations (PEMDAS/BODMAS):

P: Parentheses (or Brackets) E: Exponents (or Orders) MD: Multiplication and Division (from left to right) AS: Addition and Subtraction (from left to right)

Step 1: Simplify the division 1/7 = 0.142857 (approximately)

Step 2: Perform the subtraction 3.8 - 4.2 = -0.4

Step 3: Divide the result by 0.142857 (from the previous step) -0.4 ÷ 0.142857 ≈ -2.8000028 (rounded to seven decimal places)

So, the final result is approximately -2.8000028.