Question

Садовод-исследователь в течение июля и августанаблюдал за своей яблоней.за каждый месяц каждое яблоко увеличивает вес в 1,5 раза, но при этом 20%хороших яблок становятся червивыми. как и на сколько процентов изменился общий вес хороших яблок в конце августа по сравнению с началом июля если в начале июля ни одного червивого яблока не было?

Answer 1

Было х яблок
В июле вес стал 1,5х-0,3х=1,2х
В августе вес стал 1,2х*1,5-1,2х*1,5*02=1,2х*1,5(1-0,2)=1,2х*1,5*0,8=1,44х
1,44х-х=0,44х
Изменился на 44%

Answer 2

Calculation of the Change in Weight of Good Apples

The gardener-researcher observed their apple tree during July and August. According to the information provided, each apple increases its weight by 1.5 times every month. However, 20% of the good apples become wormy.

To calculate the change in weight of the good apples from the beginning of July to the end of August, we need to consider the following:

1. The initial weight of the good apples in July. 2. The increase in weight of the good apples in August. 3. The percentage of good apples that become wormy.

Let's break down the calculation step by step:

1. Initial Weight of Good Apples in July: - Since there were no wormy apples at the beginning of July, we can assume that the initial weight of the good apples is the total weight of all the apples observed by the gardener-researcher. - Unfortunately, the exact weight of the apples is not provided in the question, so we cannot calculate the initial weight.

2. Increase in Weight of Good Apples in August: - According to the information given, each apple increases its weight by 1.5 times every month. - Therefore, the good apples observed in August would have increased their weight by 1.5 times compared to their weight in July. - However, we cannot calculate the exact weight increase without knowing the initial weight of the good apples.

3. Percentage of Good Apples that Become Wormy: - The question states that 20% of the good apples become wormy. - This means that the weight of the wormy apples should be subtracted from the total weight of the good apples.

Unfortunately, without knowing the initial weight of the good apples in July, we cannot calculate the exact change in weight of the good apples in August.