Question

Помогите пожалуйста очень надо!!! Семья охотников сделала 135 наконечников для стрел. 2/3 от этого количества охотники обменяли с соседней семьей на бумеранги. Сколько бумерангов стало в семье охотников, если до обмена их было 20 штук, а за 1 бумеранг отдавали 3 наконечника для стрел.

Answer 1

Решение:
135*2/3 = 90 (обменяли с соседней семьей на бумеранги)
90/3 = 30 (бартер 1:3)
20+30 = 50 (бумерангов стало в семье охотников)

Answer 2

Problem Analysis

The problem states that a family of hunters made 135 arrowheads. Two-thirds of this quantity was exchanged with a neighboring family for boomerangs. We need to determine how many boomerangs the hunting family has now.

Solution

To solve this problem, we can follow these steps:

1. Calculate the number of arrowheads exchanged with the neighboring family by multiplying two-thirds of the total number of arrowheads (135) by the exchange rate of 3 arrowheads for 1 boomerang. 2. Subtract the number of arrowheads exchanged from the total number of arrowheads to find the remaining arrowheads. 3. Divide the remaining arrowheads by the exchange rate of 3 arrowheads for 1 boomerang to find the number of boomerangs the hunting family has now.

Let's calculate the solution step by step:

1. Calculate the number of arrowheads exchanged: - Two-thirds of 135 arrowheads: (2/3) * 135 = 90 arrowheads exchanged.

2. Calculate the remaining arrowheads: - Total arrowheads: 135 arrowheads. - Arrowheads exchanged: 90 arrowheads. - Remaining arrowheads: 135 - 90 = 45 arrowheads.

3. Calculate the number of boomerangs: - Exchange rate: 3 arrowheads for 1 boomerang. - Number of boomerangs: 45 arrowheads / 3 = 15 boomerangs.

Answer

The hunting family now has 15 boomerangs after exchanging 2/3 of their 135 arrowheads with the neighboring family for boomerangs.

Please let me know if you need any further assistance!