Question

Сокол пролетел 345 км за 5 часов. В обратном направлении он пролетел то же расстояние за 3 часа. На сколько увеличилась скорость сокола на обратном пути? ( МНЕ НУЖНЫ ТОООЛЬКО ОТВЕТЫ)____Мастер должен изготовить 126 деталей. Каждый час он делал 18 деталей. Сколько часов отработал мастер, если ему осталось изготовить 72 детали?

Answer 1

1
345 : 3 - 345 : 5 = 46 (км/ч)

2
(126-72)/18=3 (ч)

Answer 2

Question 1: Сокол пролетел 345 км за 5 часов. В обратном направлении он пролетел то же расстояние за 3 часа. На сколько увеличилась скорость сокола на обратном пути?

To find the increase in the falcon's speed on the return journey, we can calculate the average speed for each leg of the journey and then compare them.

Let's denote the distance traveled by the falcon as 'd' and the time taken for each leg of the journey as 't1' and 't2' respectively.

According to the given information: - The falcon traveled a distance of 345 km in 5 hours. - The falcon traveled the same distance of 345 km in 3 hours.

To calculate the average speed, we can use the formula: average speed = distance / time.

For the first leg of the journey: - Distance = 345 km - Time = 5 hours

Therefore, the average speed for the first leg of the journey is: 345 km / 5 hours = 69 km/h.

For the second leg of the journey: - Distance = 345 km - Time = 3 hours

Therefore, the average speed for the second leg of the journey is: 345 km / 3 hours = 115 km/h.

To find the increase in speed, we subtract the average speed of the first leg from the average speed of the second leg: 115 km/h - 69 km/h = 46 km/h.

Therefore, the speed of the falcon increased by 46 km/h on the return journey.