Question

Карандаш и ручка вместе стоят 8р. За карандаши заплатили 30р.,а за такое же каличество ручек 50р.Сколько стоит карандаш? плиз решите по действиям!

Answer 1

карандаш х, ручка 8-х.

30/х=кол-во карандашей и оно равно 50:(8-x)=

30/х=50: (8- х)

30* (8-х)=50х

240-30х=50х

80х=240

х=3

ручка стоит 8-3=5

Answer 2

Problem Analysis

We are given that a pencil and a pen together cost 8 rubles. We also know that for the same quantity of pencils, the cost is 30 rubles, and for the same quantity of pens, the cost is 50 rubles. We need to determine the cost of a pencil.

Solution

Let's assume the cost of a pencil is x rubles.

According to the given information: - The cost of a pen is 8 - x rubles. - The cost of the same quantity of pencils is 30 rubles. - The cost of the same quantity of pens is 50 rubles.

To find the value of x, we can set up the following equation:

x + (8 - x) = 30

Simplifying the equation, we get:

8 = 30

This equation is not possible, as 8 is not equal to 30. Therefore, there seems to be an error in the given information or the problem statement.

Please double-check the information provided and let me know if there are any additional details or corrections.