Question

Помогите сроччнооооооооооо с условием задачи!!!ДОМАШНЕЕ ЗАДАНИЕ (10) Выполни задание. Ученик купил 8 ручек и 6 карандашей по оди- наковой цене. За ручки он заплатил 16 рублей 80 копеек. Сколько заплатил ученик за карандаши? Сколько стоит вся покупка? Набери возможный вариант купюрами и монетами в рублях. ​

Answer 1

Ответ:

16 руб 80 к = 16,8 р

16,8:8 = 2,1 р = 2 р 10 к - цена одной ручки и одного карандаша.

2,1*6 = 12,6 р -  за карандаши.

16,8+12,6 = 29,4 р = 29 р 40 к

0твет:29 рублей, 40 копеек

Пошаговое объяснение:

Answer 2

Ответ сфотографировал :

Answer 3

To solve this problem, we need to find the cost of each pencil and the total cost of the purchase.

Let's start by finding the cost of each pencil. The student bought 8 pens and paid 16 rubles and 80 kopeks for them. To find the cost of each pen, we can divide the total cost by the number of pens:

Cost per pen = Total cost / Number of pens

In this case, the total cost is 16 rubles and 80 kopeks, and the number of pens is 8. Let's calculate the cost per pen:

Cost per pen = 16.80 / 8

To calculate this, we need to convert the kopeks to rubles. Since 100 kopeks make 1 ruble, we divide 80 kopeks by 100 to get 0.80 rubles. Now, let's calculate the cost per pen:

Cost per pen = 16 + 0.80 / 8

Calculating this, we find that the cost per pen is 2 rubles and 10 kopeks.

Now, let's find the total cost of the purchase. The student bought 8 pens and 6 pencils. We already know the cost per pen, so we can multiply it by the number of pens to find the total cost of the pens:

Total cost of pens = Cost per pen * Number of pens

In this case, the cost per pen is 2 rubles and 10 kopeks, and the number of pens is 8. Let's calculate the total cost of the pens:

Total cost of pens = 2.10 * 8

Calculating this, we find that the total cost of the pens is 16 rubles and 80 kopeks, which is the same amount the student paid for the pens.

Finally, let's find the total cost of the purchase, including both the pens and the pencils. We can add the total cost of the pens to the total cost of the pencils to find the total cost of the purchase:

Total cost of purchase = Total cost of pens + Total cost of pencils

Since the total cost of the pens is 16 rubles and 80 kopeks, and the total cost of the pencils is not given, we cannot determine the exact total cost of the purchase without additional information.

To represent the possible options for the total cost of the purchase in rubles, we can use different combinations of banknotes and coins. For example, the total cost of the purchase could be represented as:

- 1 banknote of 10 rubles + 1 banknote of 5 rubles + 1 banknote of 1 ruble + 3 coins of 10 kopeks + 1 coin of 5 kopeks

Please note that the exact combination of banknotes and coins may vary depending on the available denominations and the total cost of the purchase.