напишите пожалуйста уравнения к номеру32.10. Created by Кamila123. algebra-ru

Х (руб) - одна тетрадьу (руб) - одна ручка{11x+8y=309{5x-4y=3 | умножим на "2"{11x+8y=309{10x-8y=6Складываем два уравнения системы:11x+10x+8y-8y=309+621x=315x=315 : 21x=15 (руб) - одна тетрадь5*15-4у=3-4у=3-75-4у=-72у=18 (руб) - одна ручкаОтвет: 15 руб. и 18 руб. Реклама Реклама Новые вопросы в Алгебра является ли тождественно равное выражение решение -2(х-4)и -2х-8 Хелп пЖжжжжжжж!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Одна сторона треугольника в 3 раза меньше второй и на 23 дм меньше третьей. Найдите длину меньшей стороны (в дм), если его периметр равен 108 дм. Един … ицы измерения в ответе не писать. Введите правильный вариант ответа: докажите признак УУ подобие треугольников 1 вариант Вычисли: А)√V4 * 25 * 81; Б)√144*169/900*324Даю 50 баллов пожалуйста помогите решить, буду пипец как благодарна. решите уравнение 1 - x/2 = (2x + 6)/3 Памагите пжпж срочна 50 баллов, алгебра 9 класс. Вычислить с решением Срочно жду помощи даю 15 балов Предыдущий Следующий Реклама - это не так уж плохо Реклама - это не так уж плохо Понимаем - вы пришли сюда не за рекламой. Но она помогает нам предоставлять бесплатный доступ к Знаниям. Пожалуйста, внесите наш сайт в список разрешенных. ОК, разблокирую рекламу на Знаниях! 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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напишите пожалуйста уравнения к номеру32.10...

Кamila123 @Кamila123

October 2021 1 36 Report

напишите пожалуйста уравнения к номеру32.10

Answers & Comments

m11m Х (руб) - одна тетрадь
у (руб) - одна ручка

{11x+8y=309
{5x-4y=3 | умножим на "2"

{11x+8y=309
{10x-8y=6
Складываем два уравнения системы:

11x+10x+8y-8y=309+6
21x=315
x=315 : 21
x=15 (руб) - одна тетрадь

5*15-4у=3
-4у=3-75
-4у=-72
у=18 (руб) - одна ручка
Ответ: 15 руб. и 18 руб.