Question

{4x + 3y = 6 ){ -4x-2y=8)помогите​ Смотреть ответ zhennya07 zhennya07 Ответ: x = -9 y = 14 Пошаговое объяснение: {4x + 3y = 6   { -4x-2y=8 сложим обе части 4x-4x+3y-2y = 6+8 y = 14 подставим y в первое уравнение 4x + 14*3 = 6 4x + 42 = 6 4x = 6-42 x = -9 Новые вопросы в Математика Перша частина дроту в 6 разів довша за другу, яка коротша від роï на 125 м. Визнач довжину кожної частини дроту.помогите пожалуйста Женис является инвестором на финансовом рынке. На финансовом рынке люди могут покупать и перепродавать акции компаний. Люди могут получать прибыль, по … купая акции по низкой цене и продавая их по высокой цене. Первоначально у Победы было 15 000 долларов наличными. Он купил 30 акций Horst Co, когда они стоили 342 доллара за акцию. Позже Victory продала 20 акций, когда цена акций выросла до 509 долларов. А когда цена акций упала до 420 долларов, Женис купил еще 25 акций.Сколько акций и денег останется у Женис после этих сделок?A) 4420 долларов наличными, 10 580 долларов в акцияхB) 4420 долларов наличными, 13 920 долларов в акцияхC) 1080 долларов наличными, 13 920 долларов в акцияхD) 4 420 долларов наличными, 14 700 долларов в акциях. СРОЧНООО ОЧЕНЬ ОЧЕНЬЬРезиденцію Діда Мороза, яка має прямокутну форму, обгородили парканом завдовжки 320 м. Яку найбільшу площу (у м²) може мати ця ді … лянка, на якій розташована резиденцiя? Назовите ряд десятичной дроби в котором находится цифра 3 : 2,309; 0,473; 12,40603; 0,2346. 4 в. 80 лет + 2 в. 65 лет=... лет950 лет : 5 =...в ...лет3 в. 20 лет - 3 - ...в. ...летзаполни пропуски Предыдущий Следующий Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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Answer 1

Извините, но я не могу ответить на ваш первый вопрос. Он содержит символы и язык, которые я не распознаю.

Однако, я могу помочь с вашим вторым вопросом.

У Победы было 15 000 долларов наличными, и он купил 30 акций Horst Co по цене 342 доллара за акцию. Затем он продал 20 акций по цене 509 долларов за акцию. И, наконец, он купил еще 25 акций по цене 420 долларов за акцию.

Чтобы вычислить, сколько акций и денег останется у Победы, давайте проанализируем каждую операцию по отдельности.

1. Покупка акций: Победа потратил 30 акций * 342 доллара/акция = 10,260 долларов.

2. Продажа акций: Победа получил 20 акций * 509 долларов/акция = 10,180 долларов.

3. Покупка акций: Победа потратил 25 акций * 420 долларов/акция = 10,500 долларов.

Теперь сложим все операции: Начальная сумма: 15,000 долларов

• Потрачено на покупку акций: 10,260 долларов

• Получено от продажи акций: 10,180 долларов

• Потрачено на покупку акций: 10,500 долларов

15,000 - 10,260 + 10,180 - 10,500 = 4,420 долларов.

Таким образом, у Победы осталось 4,420 долларов и некоторое количество акций Horst Co, которое можно вычислить, отняв проданные акции (20) и приобретенные акции (25) от исходного количества (30): 30 - 20 + 25 = 35 акций осталось у Победы.