Question

Чтобы обойти по периметру без остановок поле прямоугольной формы, фермеру нужно затратить 12 минут. Скорость его движения 100 м/мин. Какой ширины это поле, если длина его равна 500 м?

Answer 1

12•100=1200м-проходит по периметру
1200:2-500=100м-ширина
Периметр=(a+b)•2

Answer 2

Calculation of Field Width

To calculate the width of the rectangular field, we can use the formula:

Field perimeter = 2 * (Field length + Field width)

Given that the field length is 500 meters and the farmer spends 12 minutes to go around the field without stopping, we can calculate the field perimeter using the farmer's speed of 100 m/min:

Field perimeter = Speed * Time

Field perimeter = 100 m/min * 12 min = 1200 meters

Now, let's substitute the values into the formula to find the field width:

1200 meters = 2 * (500 meters + Field width)

Simplifying the equation:

600 meters = 500 meters + Field width

Subtracting 500 meters from both sides:

100 meters = Field width

Therefore, the width of the rectangular field is 100 meters.