Question

Составьте буквенное выражение для решения задачи и упростите его.:Для покраски спортзала купили с кг краски. В первый день израсходовали 34 кг, а на второй-на 19 кг больше.Сколько килограммов краски осталось после двух дней работы? ПРИ ТОМ ЧТО С=178 Срочно помогите! Я вас очень прошу! 10балов

Answer 1

С - 34 - (34 - 19) = С - 34 - 34 + 19 = С - 68 + 19 = С - 49 = 178 - 49 = 129
ПРОВЕРКА:
129 + 34 + (34 - 19) = 178

Answer 2

Нужно меньшее число брать за х и смотреть за условинем ничего сложного

Answer 3

Task Analysis

To solve the problem, we need to create a mathematical expression to represent the amount of paint used and then simplify it to find the remaining amount of paint.

Mathematical Expression

Let's denote the total amount of paint bought as S kilograms. On the first day, 34 kilograms of paint were used, and on the second day, 19 kilograms more were used. Therefore, the total amount of paint used over the two days can be represented as: 34 + (34 + 19)

Simplification

Simplifying the expression: 34 + (34 + 19) = 34 + 53 = 87

So, the total amount of paint used over the two days is 87 kilograms. To find the remaining amount of paint, we can subtract this total from the initial amount of paint bought.

Remaining Paint

Given that S = 178 kilograms, the remaining amount of paint can be calculated as: S - 87 = 178 - 87 = 91

Therefore, 91 kilograms of paint are left after two days of work.

I hope this helps! If you have any further questions or need additional assistance, feel free to ask.