Question

СРОЧНО ПОМОГИТЕ ЗАБЫЛ как решать Упростить и решить уравнение y:8=23*3 И решить задачи До обеда пропололи 14 грядок, а после - 7. Во сколько раз больше пропололи грядок до обеда чем после Один насос откачивает 560 литров воды этот насос откачает за 11 мин? Периметр равностороннего треугольника 54 см. Чему равна длина двух его сторон? С какой средней скоростью двигался поезд если за 5 ч он проехал 650 км

Answer 1

Y=69*8= 552
1. 14/7=2
Ответ: в 2 раза
2. где полное условие???
3. Длина одной стороны = 54/3= 18 см
 Длина двух его сторон= 18*2= 36 см.
4. 650/5= 130 км/ч - средняя скорость поезда

Answer 2

Solving the Equation

To solve the equation y/8 = 23 * 3, we can follow these steps:

1. Multiply both sides of the equation by 8 to isolate the variable y: ``` y = 8 * (23 * 3) ```

2. Simplify the right side of the equation: ``` y = 8 * 69 ```

3. Calculate the result: ``` y = 552 ```

Therefore, the solution to the equation y/8 = 23 * 3 is y = 552.

Solving the Word Problem

The word problem states that 14 garden beds were weeded before lunch, and 7 garden beds were weeded after lunch. We need to find out how many times more garden beds were weeded before lunch compared to after lunch.

To solve this problem, we can subtract the number of garden beds weeded after lunch from the number of garden beds weeded before lunch, and then divide the result by the number of garden beds weeded after lunch.

1. Subtract the number of garden beds weeded after lunch from the number of garden beds weeded before lunch: ``` 14 - 7 = 7 ```

2. Divide the result by the number of garden beds weeded after lunch: ``` 7 / 7 = 1 ```

Therefore, the number of garden beds weeded before lunch is 1 time more than the number of garden beds weeded after lunch.

Pumping Water Problem

The problem states that one pump can pump 560 liters of water in 11 minutes. We need to find out how long it will take for the pump to pump a certain amount of water.

To solve this problem, we can set up a proportion using the given information:

1. Set up the proportion: ``` 560 liters / 11 minutes = x liters / t minutes ```

2. Cross-multiply and solve for x: ``` 560 * t = 11 * x ```

3. Divide both sides of the equation by 11: ``` 560t = 11x ```

4. Divide both sides of the equation by 11x: ``` t = (11x) / 560 ```

Therefore, the time it will take for the pump to pump a certain amount of water can be calculated using the equation t = (11x) / 560.

Equilateral Triangle Problem

The problem states that the perimeter of an equilateral triangle is 54 cm. We need to find the length of two sides of the triangle.

To solve this problem, we can divide the perimeter by 3 to find the length of one side, and then multiply it by 2 to find the length of two sides.

1. Divide the perimeter by 3 to find the length of one side: ``` 54 cm / 3 = 18 cm ```

2. Multiply the length of one side by 2 to find the length of two sides: ``` 18 cm * 2 = 36 cm ```

Therefore, the length of two sides of the equilateral triangle is 36 cm.

Train Speed Problem

The problem states that a train traveled 650 km in 5 hours. We need to find the average speed of the train.

To solve this problem, we can divide the distance traveled by the time taken.

1. Divide the distance traveled by the time taken: ``` 650 km / 5 h = 130 km/h ```

Therefore, the average speed of the train is 130 km/h.