Question

7,2 / 1,17x = 8 / 3,9

Answer 1

Решение:
7,2 /1,17х=8 /3,9
1,17х=7,2*3,9 :8
1,17х=0,9*3,9
1,17х=3,51
х=3,51 :1,17
х=3

Ответ: х=3

Answer 2

Решаем пропорцией
7,2*3,9= 1,17х*8
9,36х=28,08
х=3

Answer 3

To solve for x in the equation 7.2 / 1.17x = 8 / 3.9, you can follow these steps:

1. First, let's get rid of the fractions. Multiply both sides of the equation by the denominators to eliminate them:

   (7.2 / 1.17x) * (1.17x) = (8 / 3.9) * (1.17x)

   This simplifies to:

   7.2 = (8 / 3.9) * (1.17x)

2. Next, simplify the right side by multiplying:

   7.2 = (8 * 1.17x) / 3.9

   7.2 = 9.36x / 3.9

3. Now, you can isolate x by multiplying both sides by 3.9 to solve for x:

   (7.2 * 3.9) = 9.36x

   28.08 = 9.36x

4. Finally, divide both sides by 9.36 to find the value of x:

   x = 28.08 / 9.36

   x ≈ 3

So, the solution for x is approximately 3.