Question

Лыжник прошёл 15 км что составило 3/7 всего пути. сколько километров ему ещё осталось пройти?

Answer 1

3/7 = 15
значит 1/7 =5
весь путь = 7/7
осталось пройти 7/7-7/3=7/4
7/4 = 20

Answer 2

1)15:3*7=35(км)-всего надо пройти км.
2)35-15=20(км)-осталось пройти.

Answer 3

Calculating Remaining Distance for the Skier

To calculate the remaining distance the skier has to cover, we can use the information provided. The skier has already covered 15 km, which constitutes 3/7 of the total distance. We can calculate the total distance and then find out how much distance is left for the skier to cover.

Step 1: Calculate the Total Distance To find the total distance, we can use the fact that 15 km is 3/7 of the total distance. We can set up a proportion to solve for the total distance.

Step 2: Calculate the Remaining Distance Once we have the total distance, we can subtract the distance already covered (15 km) to find out how much distance is left for the skier to cover.

Solution

Using the information provided, we can calculate the remaining distance for the skier.

Step 1: Calculate the Total Distance Let's denote the total distance as "D". According to the given information, 15 km is 3/7 of the total distance. We can set up the following proportion to solve for D:

15 km / D = 3/7

Cross-multiplying, we get: 3D = 15 km * 7 3D = 105 km D = 105 km / 3 D = 35 km

So, the total distance the skier has to cover is 35 km.

Step 2: Calculate the Remaining Distance The skier has already covered 15 km. To find out how much distance is left, we can subtract the distance covered from the total distance:

Remaining distance = Total distance - Distance covered Remaining distance = 35 km - 15 km Remaining distance = 20 km

Therefore, the skier has 20 kilometers left to cover.

Conclusion

The skier has already covered 15 km, which constitutes 3/7 of the total distance. The total distance the skier has to cover is 35 km, and the remaining distance for the skier to cover is 20 km.