Question

на покупку 6 мороженых у Кати не хватит 3 рублей . Если она купит 4 мороженых , то у неё останется 7 рублей . сколько денег у Кати.​

Answer 1

Ответ:

Пошаговое объяснение:

Пусть одна порция мороженого стоит -  х руб., тогда 6 порций - 6х руб, и при этом не хватает 3 рублей , 4 порции стоят - 4х руб , но при этом остается 7 руб. Составим уравнение:

6х - 3 = 4х + 7

6х - 4х = 7 + 3

2х = 10

х= 10 : 2

х= 5 рублей стоит одно мороженое

Проверка: 6 * 5 - 3 = 4 * 5 +7

                           27  = 27

 

Answer 2

Calculation of Katya's Money

To calculate how much money Katya has, let's analyze the given information step by step.

1. It is stated that if Katya buys 6 ice creams, she will be short of 3 rubles. 2. On the other hand, if she buys 4 ice creams, she will have 7 rubles left.

Let's denote the cost of each ice cream as "x" rubles. Based on the given information, we can set up the following equations:

Equation 1: 6x - 3 = 0 (If Katya buys 6 ice creams, she will be short of 3 rubles) Equation 2: 4x - 7 = 0 (If Katya buys 4 ice creams, she will have 7 rubles left)

To find the value of "x" and calculate Katya's money, we can solve these equations simultaneously.

Solving the Equations

Let's solve the equations using the substitution method:

From Equation 1, we have: 6x - 3 = 0 Solving for x: 6x = 3 x = 3/6 x = 0.5

Now, we can substitute the value of x into Equation 2:

4(0.5) - 7 = 0 2 - 7 = 0 -5 = 0

The equation -5 = 0 is not true, which means there is no solution for this system of equations. This implies that the given information is contradictory, and we cannot determine the exact amount of money Katya has based on the given information.

Therefore, we cannot determine how much money Katya has with the given information.

Please note that the given information may contain errors or inconsistencies. It is always important to double-check the information and ensure its accuracy.

If you have any further questions, feel free to ask!