Предмет: Математика, автор: togzan05

Саша за 19200рублей купил 2 попугая,1 щенка,1 кошку. щенок в 3 раза дороже кошки,а в 2 раза дешевле попугая.Сколько стоит кошка и попугай?

Ответы

Автор ответа: ArWan

0

кошка х

собака 3х

попугай 3х*2=6х

составим уравнение

х+3х+6х+6х=19200

16х=19200

х=19200: 16

х= 1200 руб стоит кошка

1200*3=3600 руб стоит собака

3600*2=7200 руб стоит попугау

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в уравнении два раза 6х потому что попугаев у нас два

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