Question

1)2,6÷x=13÷20 2) (x-7)÷0,2=15÷4

Answer 1

Ответ:

На фото.....................

Answer 2

Ответ:

Пошаговое объяснение:

13х=20*2.6

13х=52

х=52:13

х=4

(x-7)÷0,2=15÷4

(х-7):2\10=15\4

х-7=15\4*2\10

х-7=3\4

х=3\4+7

х=7 3\4

Answer 3

Let's solve the equations step by step:

1. 2,6 ÷ x = 13 ÷ 20

To solve for x, we can cross-multiply and then divide:

2,6 * 20 = 13 * x

52 = 13x

Now, divide both sides of the equation by 13:

52 ÷ 13 = x

x = 4

Therefore, the value of x that satisfies the equation is 4.

2. (x - 7) ÷ 0,2 = 15 ÷ 4

To solve for x, we can multiply both sides of the equation by 0.2:

0.2 * (x - 7) = 15 ÷ 4

0.2x - 1.4 = 3.75

Now, let's isolate the term with x by adding 1.4 to both sides:

0.2x = 3.75 + 1.4

0.2x = 5.15

Finally, divide both sides of the equation by 0.2:

x = 5.15 ÷ 0.2

x ≈ 25.75

Therefore, the value of x that satisfies the equation is approximately 25.75.