Предмет: Математика, автор: savochkin03

восемь тетрадей стоят столько же сколько 4 ручки,сколько стоят две ручки, если 5 тетрадей стоят 75 рублей?

Ответы

Автор ответа: bober322

0

5 тетрадей=75 рублей, 8 тетрадей стоят 120 рублей, решается пропорцией

Далее 4 ручки стоят 120 рублей , 2 ручки половину стоимости, тобишь 60 рублей

Ответ:60 рублей

Автор ответа: karengina97

0

75/5=15 - одна тетрадь
15*3=45 - 3 тетради
75+45=120 - цена 8 тетрадей или 4 ручек
120/2= 60 - цена 2 ручек

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