помогите пожалуйста....одна задачка ...полностью и с пояснением..7класс. Created by ekaterina7331. matematika-ru

Пошаговое объяснение:х - число учащиеся 1 школыу - число учащихся 2 школых+у=1500Через год:1,1х +1,2у=1720{х+у=1500 {х=1500-у{1,1х+1,2у=1720 {11х+12у=1720011×(1500-у)+12у=1720016500-11у+12у=17200у=700 - число учащихся 2 школых= 1500-700=800 - число учащихся 2 школыОтвет: 700 учащихся и 800 учащихся Новые вопросы в Математикараніше, на фірмі працювали 251 робітники, а стало працювати 269. на скільки відсотків збільшилась кількість робітників?Надо найти «х» Помогите пожаааааааааааалуйсьаx:y=4,5. x/1:y/1=? (/-olan yerler kesr) ПОМГИТЕ ДАЮ 50 БАЛООВ ЛЮДИПОМГИТЕ ПЖ ДАЮ 20 БАЛООВ!!!Помогите даю 50 БАЛООВПомогите пожалуйста я хочу в 7 класс Даю много балов тому кто сделает это правильно!2/3+8/9-1/9+5/6Matematika решите плзПж быстро срочно за 5 мин дам 50 балловПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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