Question

Сумма двух чисел 715. Одно число заканчивается нолем. Если этот ноль зачеркнуть, то получится второе число. Найди ЭТИ ЧИСла. ДОМАШНЕЕ ЗАДАНИЕ B С A 9 Составь чертёж. Реши задачу. Города А, В и С соединены шоссе, город В расположен меж- ду городами А и С. Из города Ав город С выехал автомобиль со скоростью 85 км/ч, и одновременно с ним из города Bв го- род С выехал грузовик со скоростью 60 км/ч. Через сколько часов автомобиль догонит грузовик, если расстояние меж- ду городами А и В равно 125 км? ЧЕРТЕЖ HELP SOS СРООООЧНО​

Answer 1

Ответ:650 и 65

Пошаговое объяснение:

650+65=715

Answer 2

Finding the Two Numbers

To find the two numbers that add up to 715, with one number ending in zero and the other obtained by removing the zero, we can use a bit of algebra.

Let's assume the number ending in zero is represented by x0, where x is a digit. The other number, obtained by removing the zero, can be represented as x.

According to the given condition, the sum of these two numbers is 715. So, we can set up the equation:

x0 + x = 715

To solve this equation, we can subtract x from both sides:

x0 = 715 - x

Now, we need to find a value for x that satisfies this equation. We can try different values for x and check if the corresponding x0 also satisfies the equation.

Let's start with x = 1: 10 + 1 = 11, which is not equal to 715.

Let's try x = 2: 20 + 2 = 22, which is not equal to 715.

We can continue this process until we find a value of x that satisfies the equation. However, it seems that the given information might not be accurate or complete, as there is no solution that satisfies the equation.

Please double-check the information provided or provide additional details if available.

Solving the Distance Problem

To solve the distance problem, we need to determine how long it will take for the car to catch up with the truck.

Given: - The car's speed is 85 km/h. - The truck's speed is 60 km/h. - The distance between cities A and B is 125 km.

To find the time it takes for the car to catch up with the truck, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for the car to travel from city A to city B:

Time_A_to_B = Distance_AB / Speed_car

Substituting the given values:

Time_A_to_B = 125 km / 85 km/h

Calculating this, we find that it takes approximately 1.47 hours for the car to travel from city A to city B.

Now, let's calculate the time it takes for the truck to travel from city B to city C:

Time_B_to_C = Distance_BC / Speed_truck

Substituting the given values:

Time_B_to_C = 125 km / 60 km/h

Calculating this, we find that it takes approximately 2.08 hours for the truck to travel from city B to city C.

Since both the car and the truck start at the same time, the car will catch up with the truck when the time it takes for the car to travel from city A to city B is equal to the time it takes for the truck to travel from city B to city C.

Therefore, the car will catch up with the truck after approximately 1.47 hours.

Drawing a Diagram

To help visualize the problem, we can draw a simple diagram:

     A ---------------- B ---------------- C
     |<--- 125 km --->|<--- unknown distance --->|

In this diagram, A, B, and C represent the cities, and the distance between A and B is 125 km. The distance between B and C is unknown.

The car starts at city A and travels towards city B at a speed of 85 km/h. At the same time, the truck starts at city B and travels towards city C at a speed of 60 km/h.

The question asks how long it will take for the car to catch up with the truck, which is represented by the unknown distance between B and C.

By calculating the time it takes for the car to travel from A to B and the time it takes for the truck to travel from B to C, we can determine when the car will catch up with the truck.

Please note that the diagram is a simple representation and not to scale.