Предмет: Математика, автор: lolochka112233

Купили две дыни.Масса первой дыни была меньше массы второй на 2,1 кг,а масса второй дыни в 1,6 раза больше массы первой.Сколько стоит каждая дыня,если один килограмм дыни стоит 0,4 рубля?

Ответы

Автор ответа: ndusha
0
х-масса 1й дыни
х+2,1=1,6х
0,6х=2,1
х=2,1/0,6=3,5кг

3,5+2,1=5,6
3,5*0,4=1,4р-стоит 1я дыня
5,6*0,4=2,24р- стоит 2я дыня
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