Question

Х×(25÷5)=350K+120÷4=150(40×3)÷x=625÷5×X=450X÷(150×2)=3c×(50×2)=500

Answer 1

1)Х×(25÷5)=350
5х=350
х=350:5
х=70
Ответ=70

2)K+120÷4=150
К+30=150
К=150-30
К=120
Ответ:120

3)(40×3)÷x=6
120:х=6
х=20
Ответ:20

4)25÷5×X=450
5х=450
х=450:5
х=90
Ответ:90

5)X÷(150×2)=3
х:300=3
х=3·300
х=900
Ответ: 900

6)c×(50×2)=500
100с=500
С=500:100
С=5
Ответ:5

Answer 2

To solve the given equations, let's break them down one by one:

1. Х × (25 ÷ 5) = 350

The expression inside the parentheses, 25 ÷ 5, simplifies to 5. Therefore, the equation becomes:

Х × 5 = 350

To solve for Х, divide both sides of the equation by 5:

Х = 350 ÷ 5 Х = 70

2. K + 120 ÷ 4 = 150

First, let's simplify the expression 120 ÷ 4, which is equal to 30. The equation then becomes:

K + 30 = 150

To solve for K, subtract 30 from both sides of the equation:

K = 150 - 30 K = 120

3. 150 × (40 × 3) ÷ Х = 625

First, let's simplify the expression within the parentheses, 40 × 3, which is equal to 120. The equation then becomes:

150 × 120 ÷ Х = 625

To solve for Х, divide both sides of the equation by (150 × 120):

Х = (150 × 120) ÷ 625

4. Х = 450

The equation is already solved for Х.

5. Х ÷ (150 × 2) = 3c × (50 × 2) = 500

Since the expression on the left side of the equation is equivalent to the expression on the right side, we can rewrite the equation as:

3c × (50 × 2) = 500

Simplifying the expression within the parentheses, 50 × 2, gives us:

3c × 100 = 500

To solve for c, divide both sides of the equation by 100:

3c = 500 ÷ 100 3c = 5

Finally, solve for c by dividing both sides of the equation by 3:

c = 5 ÷ 3 c = 1.67