Предмет: Математика, автор: Asyavb02

двигатель за 4,5 ч расходует 66,6 л горючего. сколько литров горючего рассходует двигатель за 2,1 ч?

jekadva: 31.08

akhluev1995: Дано: треугольник АВС, угол С=90° , АС=ВС; АВ< альфа ,угол между СВ и альфа равен 30° : Найти :угол между плоскостью альфа и плоскостью треугольника АВС , ПОМОГИТЕ РЕШИТЬ ОЧЕНЬ СРОЧНО НУЖНО

Ответы

Автор ответа: Катюша1200

16

66.6:4.5=14.8 литров за час
14.8*2.1=31.08

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