Предмет: Математика, автор: 987вали

Площадь земной поверхности 510 млн км.уша занимает примерно треть.На самом деле суша занимает на 20 млн км меньше,чем треть.Вычисли площадь суши.Какую площадь составляет вода?

Ответы

Автор ответа: ikatastroff

0

510/3=170 - треть поверхности Земли
170-20=150 - площадь суши
510-150 = 360 - площадь воды

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