Question

У Ани было 120 рублей, 40% она потратила в столовой. На остальные деньги она купила 6 тетрадей. Сколько стоит одна тетрадь?"С решением пожалуйста!Дам 35 баллов

Answer 1

120:100*40= 48 рублей потратила в столовой
120-48= 72 рубля потратила на тетради
72:6=12 рублей стоит одна тетрадь

Answer 2

120-100%
120-120*0.4=120-48=
=72
72/6=12
Ответ:одна тетрадь стоит 12 рублей

Answer 3

Problem Analysis

The problem states that Anna had 120 rubles and spent 40% of it in the cafeteria. With the remaining money, she bought 6 notebooks. We need to find the cost of one notebook.

Solution

To find the cost of one notebook, we need to determine the amount of money Anna had left after spending 40% in the cafeteria. We can then divide this amount by the number of notebooks she bought.

Let's calculate the amount of money Anna had left after spending 40% in the cafeteria:

1. Calculate the amount Anna spent in the cafeteria: 40% of 120 rubles. 2. Subtract the amount spent from the initial amount to find the remaining money. 3. Divide the remaining money by the number of notebooks to find the cost of one notebook.

Calculation

1. Calculate the amount Anna spent in the cafeteria: 40% of 120 rubles. - 40% of 120 rubles = (40/100) * 120 rubles = 48 rubles. 2. Calculate the remaining money after spending in the cafeteria. - Remaining money = Initial amount - Amount spent in the cafeteria. - Remaining money = 120 rubles - 48 rubles = 72 rubles.

3. Divide the remaining money by the number of notebooks to find the cost of one notebook. - Cost of one notebook = Remaining money / Number of notebooks. - Cost of one notebook = 72 rubles / 6 notebooks = 12 rubles.

Answer

The cost of one notebook is 12 rubles.

Please let me know if I can help you with anything else.