Предмет: Математика, автор: Sonya717

На прошлой контрольной работе 140 школьников во всех школах получили 5-и. В этом году число отличников возросло на 15% Сколько отличников в этом году?

Ответы

Автор ответа: КлУбНиЧкА21

1) 15% = 0,15
2) 140*0,15=21(отл.) - возросло количество
3) 140+21=161(отл.) - в этом году.

Автор ответа: Hroft51

140*0,15=21 - отличников добавилось
140+21=161 - отличников в этом году
Ответ: 161

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