Question

1 ЗАДАЧАлика и майя сделали за лето 120 акварельных рисунков лика сделала в 3 раза больше чем майя сколько акварельных рисунков сделала за лето Лика и сколько Майя? 2 ЗАДАЧАВитя за лето сделал на 18 макетов яхт меньше, чем Костя. Сколько макетов яхт сделал за лето Витя и сколько Костя, если Костя сделал в 7 раз больше макетов, чем Витя?

Answer 1

1. 3х - количество рисунков Лики

х - количество рисунков Майи

 х+3х=120

4х=120

х=30 (столько рисунков сделала Майя)

30*3=90 - количество рисонков Лики.

Ответ: 30 и 90 рисунков.

2. х+18 - количество макетов Кости

х - количество макетов Вити

По условию ребята сделали: 7х=х+18

6х=18

х=3 (количество макетов Вити)

18+3=21 -  количество макетов Кости

Ответ: 3 и 21 макетов.

 

 

 

 

 

 

 

 

 

 

 

 

 

Answer 2

1) Пусть Майа сделала х рисунков, тогда Лика сделала 3х рисунков. Всего 120 рисунков. х+3=120

4х=120

х=30 рисунков сделала Майа

90-сделала Мика

 

2)Пусть х макетов сделал Витя, тогда  Костя сделал 7х макетов.

х+18=7х

6х=18

х=3 макетов сделал Витя.

21 макет сделал Костя

Answer 3

Problem 1: Number of Watercolor Paintings by Lika and Maya

To solve this problem, we need to determine the number of watercolor paintings made by Lika and Maya during the summer.

Let's assume that Maya made x watercolor paintings during the summer. According to the problem, Lika made three times as many watercolor paintings as Maya. Therefore, Lika made 3x watercolor paintings.

The total number of watercolor paintings made by Lika and Maya is given as 120. We can set up the following equation to solve for x:

x + 3x = 120

Simplifying the equation, we get:

4x = 120

Dividing both sides of the equation by 4, we find:

x = 30

Therefore, Maya made 30 watercolor paintings during the summer, and Lika made 3 times as many, which is 3 * 30 = 90 watercolor paintings.

So, Lika made 90 watercolor paintings, and Maya made 30 watercolor paintings.

Answer: Lika made 90 watercolor paintings, and Maya made 30 watercolor paintings.

Problem 2: Number of Yacht Models by Vitya and Kostya

To solve this problem, we need to determine the number of yacht models made by Vitya and Kostya during the summer.

Let's assume that Vitya made x yacht models during the summer. According to the problem, Kostya made 7 times as many yacht models as Vitya. Therefore, Kostya made 7x yacht models.

The total number of yacht models made by Vitya and Kostya is given as 18. We can set up the following equation to solve for x:

x + 7x = 18

Simplifying the equation, we get:

8x = 18

Dividing both sides of the equation by 8, we find:

x = 2.25

Since we cannot have a fraction of a yacht model, we need to round the value of x. In this case, we can round it down to the nearest whole number, which is 2.

Therefore, Vitya made 2 yacht models during the summer, and Kostya made 7 times as many, which is 7 * 2 = 14 yacht models.

So, Vitya made 2 yacht models, and Kostya made 14 yacht models.

Answer: Vitya made 2 yacht models, and Kostya made 14 yacht models.