Question

за 22 пачки печенья заплатили 48 рублей.сколько стоят 11 таких пачек?сколько стоят 55 таких пачек?

Answer 1

22 пачки-48 руб

11 пачек-? руб

55 пачек-? руб

 

1)22:11=2 раза

2)48:2=24 руб- стоят 11 пачек

3)55:11=5 раз

4)24х5=120 руб- стоят 55 пачек

Ответ: 24руб и 120 руб 

Answer 2

Problem Analysis

We are given that 22 packs of cookies cost 48 rubles. We need to find the cost of 11 packs and 55 packs of cookies.

Solution

To find the cost of 11 packs of cookies, we can set up a proportion using the given information:

22 packs of cookies cost 48 rubles

Let's assign variables to the unknowns: Let x be the cost of 11 packs of cookies.

Using the proportion, we can set up the equation: 22 packs / 48 rubles = 11 packs / x rubles

To solve for x, we can cross-multiply and solve for x: 22 * x = 11 * 48

Simplifying the equation: 22x = 528

Dividing both sides by 22: x = 528 / 22

Calculating the value of x: x = 24

Therefore, 11 packs of cookies cost 24 rubles.

To find the cost of 55 packs of cookies, we can set up a similar proportion using the given information:

22 packs of cookies cost 48 rubles

Let's assign variables to the unknowns: Let y be the cost of 55 packs of cookies.

Using the proportion, we can set up the equation: 22 packs / 48 rubles = 55 packs / y rubles

To solve for y, we can cross-multiply and solve for y: 22 * y = 55 * 48

Simplifying the equation: 22y = 2640

Dividing both sides by 22: y = 2640 / 22

Calculating the value of y: y = 120

Therefore, 55 packs of cookies cost 120 rubles.

Answer

- 11 packs of cookies cost 24 rubles. - 55 packs of cookies cost 120 rubles.