Предмет: Математика, автор: Олиночка

Два числа относятся как 4:1.Найдите эти числа, если: а) их сумма равна 40 б)их разность равна 12

Ответы

Автор ответа: nekto97

13

пусть 2 число=x

тогда 1число=4x

а)x+4x=40

5x=40

x=8

первое число=8*4=32

второе=8

б)4x-x=12

3x=12

x=4

первое число=4*4=16

второе=4

Автор ответа: drampir2006

10

А)4+1=5 Б)4х-х=12

40/5=8 3х=12 (делим на 3)

8*4=32 (первое число) х=4

8*1=8 (второе число) 4х=16

16-4=12

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