Question

ДОМАШНЕЕ ЗАДАНИЕ 10 Реши задачи. . К) - ПОЧЕМУ НАЗОВИ объясни а) Ученица купила тетради в клетку и линейку по одинако- вой цене. Всего – 10 штук. За тетради в клетку она уплатила 150 тенге, а за тетради в линейку — 100 тенге. Сколько было куплено тетрадей в клетку и линейку по отдельности? 6) Запиши один возможный вариант, какими купюрами она могла внести деньги в кассу. МОЖНО С УСЛОВИЕМ? А ТО ВСЕ ПИШУТ БЕЗ НЕГО​

Answer 1

150-?шт. }всего:10 штук
100-?шт. }
150+100=250тг (за все тетради)
250:10=25тг (за одну тетрадь)
150:25=6 (тетрадей в клетку)
100:25=4 тетради в линейку

Answer 2

Ответ:

Пошаговое объяснение:

150тг -?шт

100тг -?шт

Объедини скобкой всего 10шт

150+100=250тг за все тетради

250÷10=25тг за 1 тетрадь

150÷25=6 тетрадей в клетку

100÷25=4 тетради в линейку

10тг 25 тг 50тг 100тг

Answer 3

Problem Statement

Ученица купила тетради в клетку и линейку по одинаковой цене. Всего было куплено 10 штук. За тетради в клетку она уплатила 150 тенге, а за тетради в линейку — 100 тенге. Сколько было куплено тетрадей в клетку и линейку по отдельности?

Solution

Let's assume the number of notebooks bought in grid format is x and the number of notebooks bought in lined format is y.

According to the given information: - The total number of notebooks bought is 10: x + y = 10. - The cost of notebooks in grid format is 150 tenge: x * 150 = 150x. - The cost of notebooks in lined format is 100 tenge: y * 100 = 100y.

Since the cost of notebooks in grid format is equal to the cost of notebooks in lined format, we can set up the equation: 150x = 100y.

Now we can solve the system of equations to find the values of x and y.

To do this, we can use the substitution method. We can solve the first equation for x and substitute it into the second equation: x = 10 - y.

Substituting this value of x into the second equation: 150(10 - y) = 100y.

Simplifying the equation: 1500 - 150y = 100y.

Combining like terms: 1500 = 250y.

Solving for y: y = 1500 / 250 = 6.

Substituting the value of y back into the first equation to find x: x = 10 - 6 = 4.

Therefore, the student bought 4 notebooks in grid format and 6 notebooks in lined format.

Answer: The student bought 4 notebooks in grid format and 6 notebooks in lined format.

Possible Currency Denominations

To find the possible currency denominations the student could have used to pay for the notebooks, we need to consider the total cost of the notebooks.

The student paid 150 tenge for the grid notebooks and 100 tenge for the lined notebooks. The total cost of the notebooks is 250 tenge.

Here are some possible combinations of currency denominations the student could have used to pay for the notebooks: - 1 x 200 tenge note + 1 x 50 tenge coin - 2 x 100 tenge notes + 1 x 50 tenge coin - 2 x 100 tenge notes + 2 x 25 tenge coins - 2 x 100 tenge notes + 5 x 10 tenge coins - 1 x 100 tenge note + 5 x 10 tenge coins + 1 x 25 tenge coin

These are just a few examples, and there may be other possible combinations as well.

Answer: The student could have used various combinations of currency denominations, such as 1 x 200 tenge note + 1 x 50 tenge coin, 2 x 100 tenge notes + 1 x 50 tenge coin, etc., to pay for the notebooks.