Предмет: Математика, автор: ElinaManapova

первую часть контролой Даша делала 28 минут что составляло 70%всего времени, за сколько минут она сделала работу?
Пожалуйста, помогите, очень нужно!

Ответы

Автор ответа: elizavetkaredko
1
1) 28:70=0,4(мин) - 1%
2) 0,4*100=40(мин) - вся работа
Ответ: за 40 минут
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Jazz is type of music and the only art form that was created in the United States.Jazz was created by black Americans.Many blacks were broght from Africa to America as slaves.Different native songs were sung by the black slaves and the music of their homeland was played in America.
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