Question

A) 1,6 1,2 = 4 : 5x b) 5(3,36x) + 20x = -3,5

Answer 1

Ответ:

a) 1,6 1,2 = 4 : 5x

Переведем выражение в уравнение:

1.6 + 1.2 = 4 / 5x

2.8 = 4 / 5x

Умножим обе части на 5x:

14x = 4

x = 4/14 = 2/7

Ответ: x = 2/7

b) 5(3,36x) + 20x = -3,5

Переведем выражение в уравнение:

16.8x + 20x = -3.5

36.8x = -3.5

x = -3.5 / 36.8

Ответ: x = -0.0948 (округляем до 4 знаков после запятой)

Объяснение:

За ответ удиви чем небуть

Answer 2

Let's solve these equations step by step:

A) 1.6 * 1.2 = 4 : 5x

First, calculate the left side of the equation:

1.6 * 1.2 = 1.92

Now, the equation becomes:

1.92 = 4 / (5x)

To isolate x, you can multiply both sides by 5x:

5x * 1.92 = 4

9.6x = 4

Now, divide both sides by 9.6 to solve for x:

x = 4 / 9.6

x = 0.4167 (rounded to four decimal places)

So, the solution to equation A) is x ≈ 0.4167.

B) 5(3.36x) + 20x = -3.5

First, distribute the 5 on the left side:

5 * 3.36x + 20x = -3.5

16.8x + 20x = -3.5

Combine like terms:

36.8x = -3.5

Now, isolate x by dividing both sides by 36.8:

x = -3.5 / 36.8

x ≈ -0.0949 (rounded to four decimal places)

So, the solution to equation B) is x ≈ -0.0949.