Предмет: Алгебра, автор: mkverk

Двое рабочих изготовили по 100 деталей каждый. Из общего числа изготовленных деталей 70 оказались первого сорта, остальные – второго. Сколько деталей первого сорта изготовил каждый рабочий, если известно, что у первого рабочего на каждую деталь первого сорта приходилось в 4 раза больше деталей второго сорта, чем у второго рабочего.

Ответы

Автор ответа: danilyakiev2014
0
І рабочий:
х дет.- 1сорта 
у дет. - 2 сорта 

ІІ рабочий:
4х дет. - І сорта
(130-у) дет. -ІІ сорта

х+у=100            }
4x+(130-у)=100}

х=100-у
4(100-у)+130-у=100
400-4у+130-у=100
5у=430
у=86(дет) - 2 сорта изготовил І рабочий
100-86=14(дет) 1 сорта - изготовил І рабочий
14*4=56(дет) І сорта - изготовил ІІ рабочий !
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