Question

С одного цветка одновременно вылетели в противоположные стороны две стрекозы. Через о,08ч между ними было 4,4км. Скорость полёта одной стрекозы 28,8км/ч. Найдите скорость полёта другой стрекозы

Answer 1

1) 4,4 : 0,08 = 55 (км/ч) - скорость отдаления2) 55 - 28,8 = 26,2(км/ч) - скорость другой стрекозы

Answer 2

Problem Analysis

We are given the following information: - Two dragonflies flew in opposite directions from the same flower. - The distance between them after 0.08 hours was 4.4 km. - The flight speed of one dragonfly is 28.8 km/h.

We need to find the flight speed of the other dragonfly.

Solution

Let's assume the flight speed of the other dragonfly is x km/h.

Since the two dragonflies flew in opposite directions, the total distance covered by both dragonflies is equal to the distance between them.

The distance covered by the first dragonfly can be calculated using the formula: distance = speed × time.

The distance covered by the second dragonfly can be calculated using the same formula: distance = speed × time.

Adding these two distances together should give us the total distance between the dragonflies.

We can set up the following equation to solve for x:

28.8 × 0.08 + x × 0.08 = 4.4

Simplifying the equation, we get:

2.304 + 0.08x = 4.4

Subtracting 2.304 from both sides of the equation, we get:

0.08x = 2.096

Dividing both sides of the equation by 0.08, we get:

x = 26.2

Therefore, the flight speed of the other dragonfly is 26.2 km/h.

Answer

The flight speed of the other dragonfly is 26.2 km/h.