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Спортивном лагере 60 девочек, что в 4 раза меньше, чем мальчиков. всех детей россили в три корпуса, поровну в каждый корпус. сколько детей живет в каждом корпусе?

Математика

Ответы

ii090758
1)60: 4=15(мальчиков)в лагере 2)60+15=75(детей)в лагере,всего 3)75: 3=25(детей)живёт в каждом корпусе ответ: 25 детей.
yurievaalxndra55
1) 60 * 4 = 240 ( мальчиков в лагере) 2) 60 + 240 = 300 ( всего детей в лагере) 3) 300 / 3 = 100 (детей в каждом корпусе)
Zebra198383

Пошаговое объяснение:

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Mnatsovna

ответ: 2.5√14 ед. кв.

Пошаговое объяснение:

Найдем площадь треугольника А₁А₂А₃ по формуле - половина произведения   длин сторон  на синус угла между ними с векторов →А₁А₂ и →А₁А₃.

/см. решение в приложении/

. с векторного произведения. Решать не буду. напишу алгоритм, как альтернатива моему решению. можете проверить при желании. ответы совпадают.

находите координаты векторов А₁А₂ и А₁А₃, затем векторное произведение этих векторов, затем модуль этого произведения и наконец умножаете этот модуль на 0.5, получаете 2.5√14


Вышмат с заданием В . Нужно найти площадь грани А1А2А3

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Спортивном лагере 60 девочек, что в 4 раза меньше, чем мальчиков. всех детей россили в три корпуса, поровну в каждый корпус. сколько детей живет в каждом корпусе?
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