Предмет: Математика, автор: Svetlana8104

сума трьох чисел дорівнює 15,4. Друге число становить 45% від першого, а третє становить 1/5 від другого. Знайдіть ці числа

Ответы

Автор ответа: alexbloger

x+0.45x+((0.45x)/5)=15.4
x+0.45x+0.09x=15.4

x+0.54x=15.4
1.54x=15.4
x=15.4/1.54=10

10+(0.45*10)+((0.45*10)/5)=
10+4.5+0.9=15.4

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