Question

(х - 3,8) : (3х) = 0, 4 : 5

Answer 1

Ответ:

(x-3,8):(3x)=0,4:5

(x-3,8)*5=0,4*(3x)

5x-19=0,4*3x

5x-19=1,2x

5x-1,2=19

3,8x=19

x=5

Answer 2

Пошаговое объяснение:

(х-3,8):3х=0,4:5

(х-3,8)/3x=0,08

(1-3,8x)/3=0,08

1/3-3,8x/3=0,08

-3,8x=8/100-1/3

-3,8x=24/300-100/300

-3,8x=-76/300

x=(76/300):3,8

x=76/(300*3,8)

x=2/30

x=1/15

Answer 3

To solve the equation, we'll start by simplifying the expressions on both sides.

The left side of the equation is given by: (х - 3.8) / (3х)

The right side of the equation is given by: 0.4 / 5

Now we can rewrite the equation as:

(х - 3.8) / (3х) = 0.4 / 5

To remove the fractions, we can multiply both sides of the equation by the denominators of the fractions. In this case, the denominators are 3х and 5, so we'll multiply both sides by (3х) * 5:

5 * (х - 3.8) = 0.4 * (3х)

Now we can simplify the equation further:

5х - 19 = 1.2х

Next, we'll gather the terms with х on one side of the equation by subtracting 1.2х from both sides:

5х - 1.2х - 19 = 0

Combining like terms gives us:

3.8х - 19 = 0

To isolate х, we'll add 19 to both sides:

3.8х = 19

Finally, we'll divide both sides by 3.8 to solve for х:

х = 19 / 3.8

Simplifying the right side gives us:

х = 5

Therefore, the solution to the equation (х - 3.8) / (3х) = 0.4 / 5 is х = 5.