Question

в магазине продают подарочные наборы с кружками есть два вида наборов с двумя кружками и с тремя кружками всего в магазине 30 наборов а общее количество кружек во всех наборах- 70. Сколько в магазине наборов с тремя кружками?

Answer 1

1) 70 - 30 = 40
2) 40 ÷ 2 = 20 (шт.) Наборов с 2 кружками
3) 30 ÷ 3 = 10 (шт.) Наборов с 3 кружками
Но я не знаю правильно ли

Answer 2

70-30.=40.
По моему так.

Answer 3

Let's solve this problem step by step.

Let: x = the number of gift sets with two mugs, y = the number of gift sets with three mugs.

We know that there are 30 gift sets in total, so:

x + y = 30 ...........(1)

Also, we know that the total number of mugs in all the gift sets is 70, so:

2x + 3y = 70 ...........(2)

Now we have a system of equations (1) and (2) to solve for x and y.

Let's solve the system of equations:

First, let's rearrange equation (1) to solve for x: x = 30 - y ...........(3)

Now, substitute equation (3) into equation (2): 2(30 - y) + 3y = 70 60 - 2y + 3y = 70 60 + y = 70 y = 70 - 60 y = 10

Now that we have the value of y (which represents the number of gift sets with three mugs), we can find the value of x (which represents the number of gift sets with two mugs):

x = 30 - y x = 30 - 10 x = 20

So, there are 20 gift sets with two mugs and 10 gift sets with three mugs in the store.