Question

Розв'яжіть рівняння, 560:у=240:3 И ще одне 180:(х-15)=9 Пожалуйста.

Answer 1

Пошаговое объяснение:

$560 \div y = 240 \div 3$

Это я думаю можно решить как пропорция:

$240y = 560 \times 3 \\ 240y = 1680 \\ y = 7$

$180 \div (x - 15) = 9$

Ну, а это просто уравнение:

$x - 15 = 180 \div 9 \\ x - 15 = 20 \\ x = 15 + 20 \\ x = 35$

Answer 2

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Пошаговое объяснение:

Answer 3

Solving the Equations

To solve the given equations, we'll start with the first one:

Equation 1: 560 ÷ u = 240 ÷ 3

First, we'll solve for u:

560 ÷ u = 240 ÷ 3

To solve for u, we can cross-multiply:

560 * 3 = 240 * u

Now, we can solve for u:

1680 = 240u

Dividing both sides by 240:

u = 1680 ÷ 240 u = 7

So, the value of u is 7.

Moving on to the second equation:

Equation 2: 180 ÷ (x - 15) = 9

To solve for x:

180 ÷ (x - 15) = 9

We can solve for (x - 15) first:

180 ÷ (x - 15) = 9

Cross-multiplying:

180 = 9 * (x - 15)

Now, we can solve for x:

180 = 9x - 135

Adding 135 to both sides:

315 = 9x

Dividing both sides by 9:

x = 35

So, the value of x is 35.

Final Answers

The solutions to the given equations are: - For the first equation: u = 7 - For the second equation: x = 35