Question

Экскурсанты за день прошли 22 км. С утра они шли 4 час(-а), а после обеда — ещё 2 час(-а). Сколько километров экскурсанты прошли утром, если после обеда их скорость снизилась на 1 км/ч. С какой скоростью шли экскурсанты утром? Экскурсанты утром прошли ____км со скоростью ___км/ч.

Answer 1

Ответ:

16 км со скоростью 4км/ч

Answer 2

Ответ:Экскурсанты утром прошли 16 км со скоростью 4 км/ч.

Пошаговое объяснение:

утром шли 4 ч., км/ч.- ? ,км-?

пос. обеда  2 ч., км/ч на 1 км/ ч. ∠чем утром

Всего прошли 22 км

Решение

пусть х - это скорость утром

тогда (х-1) -это скорость пос. обеда

составим уравнение

4х+2(х-1)=22

4х+2х-2=22

6х=22+2

6х=24

х=24:6

х=4 км/ч скорость утром

найдём их путь утром

4 ·4=16 км прошли утром

Answer 3

Calculation of Distance Covered in the Morning

To calculate the distance covered by the tourists in the morning, we need to know their speed during that time. However, the given information does not provide the speed directly. We can use the information given about the total time spent walking and the time spent walking after lunch to determine the speed.

The tourists walked for a total of 4 hours in the morning and an additional 2 hours after lunch. We also know that their speed decreased by 1 km/h after lunch. Let's assume their speed in the morning was x km/h.

The total distance covered by the tourists can be calculated using the formula:

Distance = Speed × Time

For the morning walk, the distance covered is given by:

Distance in the Morning = Speed in the Morning × Time in the Morning

Since the total time spent walking is 4 hours, we can write:

4 = Time in the Morning + Time after Lunch

Solving for Time in the Morning, we get:

Time in the Morning = 4 - Time after Lunch

Substituting this value into the formula for distance, we have:

Distance in the Morning = Speed in the Morning × (4 - Time after Lunch)

We also know that the speed after lunch decreased by 1 km/h. Therefore, the speed in the morning can be expressed as:

Speed in the Morning = Speed after Lunch + 1 km/h

Substituting this into the formula for distance, we get:

Distance in the Morning = (Speed after Lunch + 1 km/h) × (4 - Time after Lunch)

Now, let's calculate the distance covered in the morning using the given information.

Calculation:

Given: - Total distance covered: 22 km - Time spent walking in the morning: 4 hours - Time spent walking after lunch: 2 hours - Speed decrease after lunch: 1 km/h

We need to find: - Distance covered in the morning - Speed in the morning

Using the formula derived above, we can calculate the distance covered in the morning:

Distance in the Morning = (Speed after Lunch + 1 km/h) × (4 - Time after Lunch)

Substituting the given values, we have:

Distance in the Morning = (Speed after Lunch + 1 km/h) × (4 - 2)

Simplifying the equation, we get:

Distance in the Morning = (Speed after Lunch + 1 km/h) × 2

Now, let's calculate the distance covered in the morning:

Distance in the Morning = (Speed after Lunch + 1 km/h) × 2

Since we don't have the specific values for the speed after lunch and the time after lunch, we cannot calculate the exact distance covered in the morning. We need additional information to determine the speed after lunch or the time after lunch.

Please provide any additional information you may have, and I will be happy to help you further.