Question

tìm x :

a, X x 1,7 = 85 ;    b, 0,22 x X = 12 , 32 ;     c, X x 0,26 = 1,17 x 1,04 ;     d, X x 1,28 = 4,48 x 3,84

 

             

Answer 1

x = 85:1,7 = 50

x = 12,32:0,22 = 56

x = 1,2168 : 0,26 = 4,68

x = 17,2032 :1,28 = 13,44 

Answer 2

a, X x 1,7 = 85  

=> x = 85:1,7 

=>x=50

b, 0,22 x X = 12 , 32    

=>x = 12,32:0,22

=>x= 56

c, X x 0,26 = 1,17 x 1,04

=> x = 1,2168 : 0,26

=>x= 4,68

d, X x 1,28 = 4,48 x 3,84

=>x = 17,2032 :1,28

=>x = 13,44