Вопрос школьника по предмету Математика
30% дороги між двома населиними пунктами становлять 60км.42% усього шляху заасфальтували. Скільки кілометрів дороги заасвальтували?
Ответ учителя по предмету Математика
Ответ:
84км
Пошаговое объяснение:
Якщо 30% — це 60 км, то 100% — це 200 км
30%-60км
100%-х км
30х=6000
х=200 км
Заасфальтували 42% усього шляху, тобто
200 км — 100%
х км — 42%
200·42=100х
х=84 км
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