Question

Решите Плиззз По действиям:Оператор в 1-ый день набрал 28%,а во 2-ой день 20% страниц рукописи.После этого ему осталось 39 страниц.Сколько всего страниц было в рукописи?ПЛИИИИИИЗЗЗ

Answer 1

1) 28+20=48% набрал всего
2) 100-48=52% осталось и равно 39 страниц
3) 39:52*100=75 страниц всего

Answer 2

1) 28 + 20 = 48 ( % ) 
2) 100 - 48 = 52 ( % ) 
3) 100 * 39 : 52 = 75 ( cтр)
Ответ 75 страниц

Answer 3

Problem Analysis

We are given that an operator typed 28% of the manuscript on the first day and 20% on the second day. After these two days, there were 39 pages remaining. We need to determine the total number of pages in the manuscript.

Solution

Let's assume the total number of pages in the manuscript is x.

On the first day, the operator typed 28% of the manuscript, which is equal to 0.28x pages.

On the second day, the operator typed 20% of the manuscript, which is equal to 0.20x pages.

After these two days, there were 39 pages remaining, so the equation becomes:

x - (0.28x + 0.20x) = 39

Simplifying the equation:

x - 0.48x = 39

0.52x = 39

Dividing both sides of the equation by 0.52:

x = 39 / 0.52

Calculating the value of x:

x ≈ 75

Therefore, the total number of pages in the manuscript is approximately 75.

Answer

The total number of pages in the manuscript is approximately 75.