Question

Михаил купил справочник по математике ,потратив на него 45% имевшихся у него денег. Сколько денег было у Михаила,если справочник стоит 36р.?

Answer 1

36 умножить 100  разделить на 45  равно 80

Answer 2

Calculating the Amount of Money Mikhail Had

To calculate the amount of money Mikhail had, we can use the information provided in the question and the cost of the math textbook.

Mikhail spent 45% of his money on the math textbook, which costs 36 rubles.

Let's calculate the amount of money Mikhail had before buying the textbook.

Calculation

We can use the following formula to calculate the amount of money Mikhail had: Amount spent = (Percentage spent / 100) * Total amount

Given: - Amount spent = 45% of the total amount - Cost of the textbook = 36 rubles

We can use the formula to find the total amount Mikhail had before buying the textbook: 45% of Total amount = 36 rubles

Now, let's solve for the total amount Mikhail had.

Solution

Using the given information, we can solve for the total amount Mikhail had: 45% of Total amount = 36 rubles

Total amount = 36 rubles / (45% / 100)

Total amount = 36 rubles / 0.45

Total amount = 80 rubles

So, Mikhail had 80 rubles before buying the math textbook.

Therefore, the amount of money Mikhail had before buying the textbook was 80 rubles.