Question

Мама заплатила за телефон 200 руб. за электричество на 138 руб. больше чем за телефон После этого у нее осталось 211 Сколько денег было у мамы

Answer 1

1) 200+138=338 (руб) - заплатила за электричество
2) 338+200 = 538 (руб) - заплатила за тел. и электричество вместе
3) 538+211 = 749 (руб)
Ответ: у мамы было 749 руб

Answer 2

Calculating the Amount of Money Mother Had

To calculate the amount of money the mother had before paying for the phone and electricity, we can use the given information.

Let's denote: - x as the amount paid for the phone - y as the amount paid for electricity - z as the remaining amount

We are given the following information: 1. The mother paid 200 rubles for the phone. 2. The mother paid 138 rubles more for electricity than for the phone. 3. After these payments, the mother had 211 rubles left.

Calculations

Using the given information, we can set up the following equations: 1. x + y = 200 + 138 (The total amount paid for electricity and phone) 2. x + y + 211 = z (The remaining amount after the payments)

Substituting the value of x from the first equation into the second equation: 200 + 138 + 211 = z 538 = z

So, the mother had 538 rubles before paying for the phone and electricity.

This calculation is based on the provided information and the equations derived from it.