Question

(2 29/30х + 13/42)×0,125=17/56
ПОЖАЛУЙСТА СРОЧНО НАДО

Answer 1

Ответ:

89/30x +13/42)*0,125=17/56

623+65/210x=688/210x=344/105x*0,125(125/1000) = 43/21x *25/125=1075/2625x=

1075/2625 *1/x=17/56

1/x=17/56:1075/2625

1/x=17/56 *2625/1075

1/x=. 17/8 *375/1075

1/x=

Answer 2

(2 29/30x + 13/42)*0,125= 17/56;
89/30x + 13/42 = 17/56 : 1/8;
89/30x + 13/42 = 17/56 * 8;
89/30x + 13/42 = 136/56;
89/30x + 13/42 = 17/7;
89/30x = 17/7 - 13/42;
89/30x = (102-13)/42;
89/30x = 89/42;
x = 89/42 : 89/30;
x = 89/42 * 30/89;
x = 5/7.
Ответ: х= 5/7