Предмет: Математика, автор: isaevich2007

Добрый вечер! Прошу помочь!
Число а составляет 30% числа в. Сколько процентов составляет число в от числа а?
Даю 45 баллов.

Ответы

Автор ответа: noname1239
1

Ответ:

100-30 =70 proshentov

Автор ответа: bodanezin
0

Ответ:

А= 25 % от б б= ? % от а значит а= 0,25б составляем пропорцию, чтобы узнать сколько процентов б составляет от а пусть б-×%, тогда а -0,25б - 100% ×= (б * 100%)/0,25б= 400%

Ой, так же само только 30 подставь

isaevich2007: А как получилось 400%
isaevich2007: ??
noname1239: ala
noname1239: ya tak reshil
noname1239: ne nravitsa ne smotri
noname1239: odeot
isaevich2007: Чу, весело получается, ты пишешь непонятно что + неправильно, еще и называешь меня идиотом.
noname1239: da
noname1239: idi ti nax**
noname1239: ponal
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