Question

1) 65% от 1 килограмма 2) 54% от 17 метров 3) 30% от 45 сантиметров 4) 8% от 200 литров 5) 18% от 1 метра 6) 0,5 от 6 гектаров. 1) Между Таллинном и Вильянди 160 км. За какое время автомобиль преодолеет это расстояния, если его средняя скорость равна 80 км/ч 2) Скорость поезда состовляет 75% от скорости автомобиля. а) Вычисли среднюю скорость поезда. б) За какое время поезд преодолеет расстояния от Таллинна до Вильянди (если считать, что растояния по железной дороге и шоссе равны). Помогите пожалуйста!! Прошуу очень нужно!!!

Answer 1

1) 2часа
2)64км/ч
3)2,5часа
100% верно

Answer 2

Calculation of Percentages

1) 65% of 1 kilogram: To calculate 65% of 1 kilogram, we multiply 1 kilogram by 0.65. 65% of 1 kilogram is 0.65 kilograms.

2) 54% of 17 meters: To calculate 54% of 17 meters, we multiply 17 meters by 0.54. 54% of 17 meters is 9.18 meters.

3) 30% of 45 centimeters: To calculate 30% of 45 centimeters, we multiply 45 centimeters by 0.30. 30% of 45 centimeters is 13.5 centimeters.

4) 8% of 200 liters: To calculate 8% of 200 liters, we multiply 200 liters by 0.08. 8% of 200 liters is 16 liters.

5) 18% of 1 meter: To calculate 18% of 1 meter, we multiply 1 meter by 0.18. 18% of 1 meter is 0.18 meters.

6) 0.5 of 6 hectares: To calculate 0.5 of 6 hectares, we multiply 6 hectares by 0.5. 0.5 of 6 hectares is 3 hectares.

Calculation of Time and Speed

1) Time taken to travel 160 km at an average speed of 80 km/h: To calculate the time taken, we divide the distance by the speed. The time taken to travel 160 km at an average speed of 80 km/h is 2 hours. The car will take 2 hours to cover the distance between Tallinn and Viljandi.

2) Calculation of train speed and time taken: a) Calculation of average train speed: The train speed is given as 75% of the car's speed. To calculate the train speed, we multiply the car's speed by 0.75. The average train speed is 60 km/h.

b) Calculation of time taken by the train to cover the distance from Tallinn to Viljandi: Since the distances on the railway and the highway are equal, the time taken by the train to cover the distance will be the same as the car's time. Therefore, the train will also take 2 hours to cover the distance from Tallinn to Viljandi.

I hope this helps! Let me know if you have any further questions.