Question

1) 9/2=Х/3 2) Х:0,02=8:4; 3) 30/Х=3/7; 4) 2/7=Х:14

Answer 1

Ответ:

1)x=9*3:2

2)x=0.02*8:4

3)x=10*7:3

4)X=14*2:7

Осталось лишь посчитать, что можно сделать на калькуляторе))))

Answer 2

To solve each of these equations, we'll isolate the variable "X" by performing the necessary mathematical operations. Let's go through each equation step-by-step:

1. 9/2 = X/3

To solve for X, cross-multiply and then divide by 2:

9 * 3 = 27 X = 27 / 2 X = 13.5

So, X = 13.5

2. X:0.02 = 8:4

To solve for X, first simplify both sides of the equation:

0.02 can be written as 2/100 or 1/50 8:4 simplifies to 2:1

Now, rewrite the equation:

X / (1/50) = 2

To eliminate the fraction on the left side, multiply both sides by 50:

X = 2 * 50 X = 100

So, X = 100

3. 30/X = 3/7

To solve for X, cross-multiply and then divide:

3 * X = 30 * 7

Now, divide both sides by 3:

X = (30 * 7) / 3 X = 70

So, X = 70

4. 2/7 = X:14

To solve for X, cross-multiply and then divide:

2 * 14 = X * 7

Now, divide both sides by 7:

X = (2 * 14) / 7 X = 4

So, X = 4

To summarize the solutions:

1. X = 13.5
2. X = 100
3. X = 70
4. X = 4