Question

Решите задачи.1) за день поймали 12 окуней.Утром поймали на 4 рыбы больше,чем вечером.Сколько окуней поймали утром?сколько окуней поймали вечером?2)Мама приготовила всю пойманную рыбу за 4 дня.В первый день она запекла рыб в три раза больше,чем в каждый из остальных.Сколько рыб запекла мама в первый день.решите задачу 2 по действиям

Answer 1

Пусть вечер будет х , а утро х+4
1)х+х+4=12
2х+4=12
2х=12-4
х=8÷2
×=4 поймали вечером
2)4+4=8 поймали утром

Answer 2

Problem 1: Number of Fish Caught in the Morning and Evening

To solve this problem, let's assign variables to the number of fish caught in the morning and evening.

Let's say the number of fish caught in the morning is represented by x.

According to the problem, the number of fish caught in the evening is 4 less than the number caught in the morning. So, the number of fish caught in the evening is x - 4.

Given that a total of 12 fish were caught in a day, we can set up the following equation:

x + (x - 4) = 12

Simplifying the equation, we get:

2x - 4 = 12

Adding 4 to both sides of the equation, we have:

2x = 16

Dividing both sides of the equation by 2, we find:

x = 8

Therefore, the number of fish caught in the morning is 8, and the number of fish caught in the evening is 8 - 4 = 4.

So, 8 fish were caught in the morning and 4 fish were caught in the evening.

Problem 2: Number of Fish Baked by Mom on the First Day

To solve this problem, let's assign variables to the number of fish baked by Mom on the first day and the number of fish baked on each of the remaining days.

Let's say the number of fish baked by Mom on the first day is represented by x.

According to the problem, Mom baked three times more fish on the first day than on each of the remaining days. So, the number of fish baked on each of the remaining days is x/3.

Given that all the fish caught were baked over a span of 4 days, we can set up the following equation:

x + (x/3) + (x/3) + (x/3) = 12

Simplifying the equation, we get:

x + x/3 + x/3 + x/3 = 12

Combining like terms, we have:

(3x + x + x + x)/3 = 12

Simplifying further, we get:

6x/3 = 12

Dividing both sides of the equation by 6/3, we find:

2x = 12

Dividing both sides of the equation by 2, we have:

x = 6

Therefore, Mom baked 6 fish on the first day.