Question

1. –49,5 : x = 5 2.–192 : x = –4 3. –480 : (–40) + 4 : (–13).

Answer 1

Здравствуйте.

1):

-49,5:х= 5 -

х= -49,5: 5

х= -9,9

Проверка:

-49,5: (-9,9)= 5

5= 5

2) -192:х= -4

х= -192: (-4)

х= 48

Проверка:

-192:48= -4

-4= -4

-480:(-40)+ 4: (-13)= 12+ (- 4/13)= 12- 4/13= 11 9/13

Answer 2

Ответ:

1.  х = -9,9

2. х = 48

3. 11 9/13

Пошаговое объяснение:

1. –49,5 : x = 5

х = -49,5/5

х = -9,9

2.–192 : x = –4

х = -192/-4

х = 48

3. –480 : (–40) + 4 : (–13) = 12 + (-4/13) = 12 - 4/13 = 11 9/13

Answer 3

It looks like you've provided a list of mathematical expressions with variable "x" and calculations involving various operations. I'll help you solve each of these expressions:

1. $-49.5 \div x = 5$: To solve for $x$, you need to isolate $x$ on one side of the equation. Multiply both sides of the equation by $x$:

-49.5 = 5x\] Now, divide both sides by 5 to find the value of \(x\): \[x = -9.9\] 2. \(-192 \div x = -4\): Follow a similar process as above to solve for \(x\): \[x \cdot (-192) \div x = -4 \cdot x \\ -192 = -4x\] Divide both sides by -4 to find \(x\): \[x = 48\] 3. \(-480 : (-40) + 4 : (-13)\): Follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). Start with the divisions inside the parentheses and then proceed with the remaining calculations: \[-480 : (-40) + 4 : (-13) \\ 12 + 4 : (-13) \\ 16 : (-13) \\ -1.23076923\] So, the result of the expression is approximately -1.23076923. Keep in mind that mathematical operations should be performed following the order of operations to ensure accurate results.