Question

№1 Пасажирский поезд проехал 450 км за 5 часов. Сколько км проедет поезд за 12 часов? №2 за 2 часа самолёт пролетел 1400 км. За сколько часов пролетит 8400 км? №3 в одном мотке 138 м шерсти а в другом в 2 раза меньше.Сколько метров шерсти в двух мотках

Answer 1

1)450:5=90км за 1 час
90*12=1080 км за 12ч

2)1400:2=700км за1 ч
   8400:700=12ч
3)138:2=69м в другом
   138+69=207м в двух мотках

Answer 2

№1
1)450:5=90(км) за 1 час
2)90*12=1080(км)проедет за 12 часов
№2 
1)1400:2=700(км)за 1 час
2)8400:700=12(ч)за 84000 км
№3
1)138:2=69(м)  во втором мотке шерсти
2)138+69=207(м) в двух мотках

Answer 3

Question 1: Пасажирский поезд проехал 450 км за 5 часов. Сколько км проедет поезд за 12 часов?

To find out how many kilometers the train will travel in 12 hours, we can use the formula: distance = speed × time. Since the speed of the train is not given, we cannot calculate the exact distance. However, if we assume that the speed of the train remains constant, we can calculate the average speed of the train using the given information and then use that average speed to calculate the distance.

Given: - Distance traveled in 5 hours = 450 km

To find the average speed, we divide the distance traveled by the time taken: Average speed = Distance / Time

Average speed = 450 km / 5 hours = 90 km/h

Now, we can calculate the distance traveled in 12 hours using the average speed: Distance = Speed × Time Distance = 90 km/h × 12 hours = 1080 km

The train will travel 1080 km in 12 hours.

Question 2: За 2 часа самолёт пролетел 1400 км. За сколько часов пролетит 8400 км?

To find out how many hours it will take for the plane to fly 8400 km, we can use the formula: time = distance / speed. Since the speed of the plane is not given, we cannot calculate the exact time. However, if we assume that the speed of the plane remains constant, we can calculate the average speed of the plane using the given information and then use that average speed to calculate the time.

Given: - Distance traveled in 2 hours = 1400 km

To find the average speed, we divide the distance traveled by the time taken: Average speed = Distance / Time

Average speed = 1400 km / 2 hours = 700 km/h

Now, we can calculate the time taken to travel 8400 km using the average speed: Time = Distance / Speed Time = 8400 km / 700 km/h = 12 hours

The plane will take 12 hours to fly 8400 km.

Question 3: В одном мотке 138 м шерсти, а в другом в 2 раза меньше. Сколько метров шерсти в двух мотках?

Given: - Length of wool in one spool = 138 m - Length of wool in the other spool is half of the first spool

To find the total length of wool in both spools, we can add the lengths of the two spools together.

Length of wool in the second spool = (1/2) * 138 m = 69 m

Total length of wool in both spools = 138 m + 69 m = 207 m

There are 207 meters of wool in the two spools.