Question

Помогите сделать задачу: Від липи до вулика 720 м. Дві бджоли вилетіли з них одночасно назустріч одна одній зі швидкостями 50 м/хв. і 70 м/хв. За скільки хвилин вони зустрануться?

Answer 1

1)70+50=120м\мин-скорость сближения.
2)720:120=через 6 мин-встретятся.

Answer 2

Problem Analysis

To solve this problem, we need to find the time it takes for two bees to meet when they start flying towards each other from two different points. We are given the distance between the two points and the speeds of the bees.

Solution

Let's break down the problem step by step:

1. We are given that the distance between the two points is 720 meters. 2. The first bee is flying towards the second bee with a speed of 50 m/min. 3. The second bee is flying towards the first bee with a speed of 70 m/min.

To find the time it takes for the two bees to meet, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two bees since they are flying towards each other.

Let's calculate the time it takes for the bees to meet:

1. Convert the speeds from m/min to m/sec: - The speed of the first bee is 50 m/min, which is equivalent to 0.83 m/sec (50 m/min ÷ 60 sec/min). - The speed of the second bee is 70 m/min, which is equivalent to 1.17 m/sec (70 m/min ÷ 60 sec/min).

2. Calculate the relative speed: - The relative speed is the sum of the speeds of the two bees: 0.83 m/sec + 1.17 m/sec = 2 m/sec.

3. Calculate the time it takes for the bees to meet: - Time = Distance / Relative Speed - Time = 720 m / 2 m/sec = 360 seconds.

Therefore, the two bees will meet after 360 seconds, or 6 minutes.

Answer

The two bees will meet after 6 minutes.