Question

Реши задачу. Настя купила 12 листов цветной бумаги, а Саша - 7 листов. Настя заплатила за покупку 50 руб. больше чем Саша. Сколько заплатил каждый из них?

Answer 1

Решение:
1)12-7=5 листов стоят 50 руб.
2)50/5=10 руб. стоит 1 лист.
3)12*10=120 руб. заплатила Настя.
4)7*10=70 руб. заплатил Саша.

Answer 2

Problem Analysis

Nastya bought 12 sheets of colored paper, while Sasha bought 7 sheets. Nastya paid 50 rubles more than Sasha. We need to find out how much each of them paid for the purchase.

Solution

Let's denote the cost of one sheet of paper for Nastya as x and for Sasha as y. We can set up the following equations based on the given information: 1. Nastya bought 12 sheets, so the total cost for Nastya is 12x. 2. Sasha bought 7 sheets, so the total cost for Sasha is 7y. 3. Nastya paid 50 rubles more than Sasha, so we have the equation 12x = 7y + 50.

We can solve this system of equations to find the values of x and y.

Calculation

From source we have the equation 12x = 7y + 50. We can use this to solve for the values of x and y.

Conclusion

After solving the equations, we can find the values of x and y, which represent the cost of one sheet of paper for Nastya and Sasha, respectively.