Предмет: Алгебра, автор: umsalamatik

Задача Из партии в 1000 ампул с новокаином 20 ампул оказалось бракованными Определить процент неиспорченных ампул

Ответы

Автор ответа: 6Белый6Волк6

Ответ:

98%

Объяснение:

1000 ампул - 100%

20 ампул - х

составим пропорцию

1000 - 20

100 - х

(20•100):1000=2%( составляют 20 ампул от 1000)

100%-2% =98%

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Hi, I’m Lori. I play the guitar in a band. I started learning about two years ago and the group got together last year. Anyway, a week ago we had our first concert and I want to tell you about it. It was at the local town hall, not far from my

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