Question

Помогите составить условия к двум задачам.!!!! 1) На двух полках лежало 195 пачек печенья. Когда с первой полки на вторую переложили 28 пачек,то на двух полках стало печенья поровну.Сколько печенья пачек было на каждой полке первоначально? 2)В двух комнатах 45 чел.Из первой вышли 9,а из второй 14,и людей стало в комнатах поровну.Сколько чел было в каждой комнате первоначально?

Answer 1

2)
1)9+14=23-людей вышло всего.
2)45-23=22(чел.)-осталось.
3)22:2=11(чел.)-поровну в каждой комнате.
4)11+9=20(чел.)-в первой комнате.
5)11+14=25(чел.)-во второй комнате.

Answer 2

Problem 1

Let's break down the information given: - Originally there were 195 packs of cookies total on the two shelves - 28 packs were moved from the first shelf to the second shelf - After the move, there was an equal number of packs on each shelf

To set up the conditions: - Let x = the original number of packs on the first shelf - 195 - x = the original number of packs on the second shelf - After the move: - First shelf has x - 28 packs - Second shelf has (195 - x) + 28 packs - For there to be an equal number on each shelf after the move, we set up the equation: x - 28 = (195 - x) + 28 - Solving this equation gives x = 97.5 - Since x must be a whole number, the original number of packs on each shelf was 98 packs

Problem 2

Let's break down the information given: - Originally there were 45 people total in the two rooms - 9 people left the first room - 14 people left the second room - After the leaves, there was an equal number of people in each room

To set up the conditions: - Let x = the original number of people in the first room - 45 - x = the original number of people in the second room - After people left: - First room has x - 9 people - Second room has (45 - x) - 14 people - For there to be an equal number in each room after, we set up the equation: x - 9 = (45 - x) - 14 - Solving this equation gives x = 20 - Therefore, the original number of people in each room was 20 people