Question

 

A) ( x+ 35 ):7,7= 30,6

B) 470,04 : x - 5 =19

C) 12 -x:7,5 =4,2

D) 20+ 32,68 x X= 119,3472

Answer 1

a)(x+35):7,7=30,6

=>x+35=235,62

=>x=200,62

b)470,04:x-5=19

=>470,04:x =24

=>x=19,585

c)12-x:7,5=4,2

=>x:7,5= 7,8

=>x=58,5

 

Answer 2

ai làm cả bài giải tớ sẽ cho 3 tích

Answer 3

ban tic mjnh lm cho na 

Answer 4

(x+35):7,7=30,6

  x+35      =30,6x7,7

  x+35      =?

còn đâu tự tính

Answer 5

a,200,62

b,19,585

c, ko bit

d,3,04

Answer 6

giải cả bài đi mk cho 3 tich

 

Answer 7

\(\left(x+35\right):7,7=30,6\)

\(\Leftrightarrow x+35=30,6\text{x}7,7\)

\(\Leftrightarrow x+35=235,62\)

\(\Leftrightarrow x=235,62-35\)

\(\Leftrightarrow x=200,62\)

 

\(470,04:x-5=19\)

\(\Leftrightarrow470,04:x=19+5\)

\(\Leftrightarrow470,04:x=24\)

\(\Leftrightarrow x=470,04:24=19,585\)

 

\(12-x:7,5=4,2\)

\(\Leftrightarrow x:7,5=12-4,2\)

\(\Leftrightarrow x:7,5=7,8\)

\(\Leftrightarrow x=7,8\text{x}7,5\)

\(\Leftrightarrow x=58,5\)

 

\(20+32,68.x=119,3472\)

\(32,68.x=119,3472-20\)

\(32,68.x=99,3472\)

\(x=99,3472:32,68\)

\(x=3,04\)