Question

В школьную библиотеку привезли новые книги учебники составили 60% всех произведенных книг художественная литература 25% а остальные 15 книг словари Сколько всего книг привезли На сколько учебников было больше Чем словарей

Answer 1

История-?60уч по 10 п /
География-? уч по 10 п. /?уч.
1) 60+40=100(уч) -всего.
2)100: 10=10(п) -привези.
Ответ: 10 пачек учебников привезли в библиотеку
ЕСЛИ
В школьную библиотеку привезли в 4 одинаковых упаковках 60 учебников. Сколько упаковок понадобилось для 90
1)60:4=15(уч.) -в одной упаковке.
2)90:15=6(уп.)
Ответ: понадобилось 6 упаковок.

Answer 2

Calculation of Total Number of Books

To calculate the total number of books brought to the school library, we need to determine the percentages of different types of books and the total number of books represented by each percentage.

According to the information provided, 60% of all the books brought to the library are textbooks, 25% are works of fiction, and the remaining 15 books are dictionaries.

Let's assume the total number of books brought to the library is represented by "x."

To calculate the number of textbooks, we can use the equation: 60% of x = textbooks.

To calculate the number of works of fiction, we can use the equation: 25% of x = works of fiction.

And finally, the number of dictionaries is given as 15.

Calculation Steps

1. Calculate the number of textbooks: - 60% of x = textbooks - 0.6x = textbooks

2. Calculate the number of works of fiction: - 25% of x = works of fiction - 0.25x = works of fiction

3. The number of dictionaries is given as 15.

4. Calculate the total number of books: - Total number of books = textbooks + works of fiction + dictionaries

Solution

Let's solve the equations to find the values of textbooks, works of fiction, and the total number of books:

1. Calculate the number of textbooks: - 0.6x = textbooks

2. Calculate the number of works of fiction: - 0.25x = works of fiction

3. The number of dictionaries is given as 15.

4. Calculate the total number of books: - Total number of books = textbooks + works of fiction + dictionaries

Since we don't have the exact value of "x" or the number of textbooks, we cannot determine the exact number of books brought to the library or the difference between the number of textbooks and dictionaries.