Question

На школьной выставке 92 рисунков выполнены красками, а остальные - карандашами. Сколько всего рисунков на выставке, ес ли карандашами выполнено ³/₇ всех рисунков?

Answer 1

Ответ:

Пошаговое объяснение:

1- 3/7 = 4/7 рисунков выполнено красками

92 рисунка - 4/7

  х рисунков - 1

х= 92 : 4/7= 92 : 4 * 7 = 161 рисунков всего на выставке

Answer 2

Ответ: 161 рис всего

Пошаговое объяснение:

7/7-3/7=4/7 составляют 92 рисунка

92÷4/7=92×7/4=92÷4×7=161 рисунок всего

Answer 3

Calculation of the Total Number of Drawings

To determine the total number of drawings at the exhibition, we need to find out how many drawings were done with pencils. According to the given information, 3/7 of all the drawings were done with pencils.

Let's assume the total number of drawings at the exhibition is represented by the variable 'x'.

We can set up the following equation to represent the given information:

(3/7) * x = number of drawings done with pencils

To find the total number of drawings, we can solve this equation for 'x'.

Let's calculate it:

(3/7) * x = number of drawings done with pencils

Since the number of drawings done with pencils is not given, we'll represent it as 'y'.

(3/7) * x = y

Now, we can substitute the given information into the equation:

(3/7) * x = (92/100) * x

Simplifying the equation:

(3/7) * x = (92/100) * x

Cross-multiplying:

300 * x = 92 * 7 * x

300 * x = 644 * x

Dividing both sides by 'x':

300 = 644

This equation is not possible to solve because it leads to a contradiction. Therefore, there is no solution for this equation.

Based on the given information, it is not possible to determine the total number of drawings at the exhibition.

Please let me know if there is anything else I can help you with.