10 x 10 x 9 x 95 x 56 x 0 = 0

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K mk nha !

10 x 10 x 9 x 95 x 56 x 0 = 0

10x10x9x95x56x0=0

no bang 540

9 x 5 x 3 x 4 = 540

nhớ k mik

mik tích rùi nha

x = 5 < 6;7;8 < 9

ai tick mik mik tick lại cko

  Số cần tìm là :

         3 x 3 = 9 

           Đáp số : 9 

  Đúng nha Boboiboy bạn làm đúng rồi !

Đồ khùng ngang bà tưng

Đồ khùng ngang bà tưng

a) ( 72 - 8 x 9 ) : ( 20 + 21 + 22 + 23 + 24 + 25 )

= ( 72 - 72 ) : ( 20 + 21 + 22 + 23 + 24 + 25 )

= 0 : ( 20 + 21 + 22 + 23 + 24 + 25 )

= 0

b) ( 500 x 9 - 250 x 18 ) x ( 1 + 2 + 3 + ... + 9 )

= ( 500 x 9 - 250 x 2 x 9 ) x ( 1 + 2 + 3 + ... + 9 )

= ( 500 x 9 - 500 x 9 ) x ( 1 + 2 + 3 + ... + 9 )

= 0 x ( 1 + 2 + 3 + ... + 9 )

= 0

a)=(72-72):(20+.....+25)

=0:(20+.......+25)

=0

b)=(4500-4500)*(1+........+9)

=0*(1+........+9)

=0

c)=(11+.............+19)*(48-48)

=(11+...........+19)*0

=0

a)=(72-72):(20+21+22+....)=0:(20+21+......)=0

b)=(4500-4500)x(1+2+3+...+9)=0x(1+2+3+...+9)=0

c)=(11+13+15+....+19)x(48-48)=911+13+15+..+19)x0=0

=>2x=2/3

hay x=1/3

\(\dfrac{9}{7}\times x+\dfrac{5}{7}\times x=\dfrac{2}{3}\)

\(\dfrac{14}{7}\times x=\dfrac{2}{3}\)

\(x=\dfrac{2}{3}:2=\dfrac{1}{3}\)

2x=2/3

hay x=1/3

\(x+12=29+18+1\)

\(x+12=48\)

           \(x=48-12\)

           \(x=36\)

\(a\times9+a\times5+a\times4+a\times8+a\)

\(=a\times\left(9+5+4+8+1\right)\)

\(=a\times27\)

 x + 12 = 29+18+1

mà 29+18+1=48

suy ra x=48-12

x= 36

ax9+ax5+ax4+ax8+a

=ax27

k mk nha

thankyou

x+12=29+18+1                                                    a x9+a x5+a x4 +a x8 + a         

x+12=48                                                              =a x9+a x5+a x4 +a x8 + ax1        

x      =48-12                                                         =ax(9+5+4+8+1)

x      =  36                                                            =ax       27

\(\left(x+\dfrac{1}{3}\right)\times\dfrac{9}{14}\times\dfrac{7}{3}-\dfrac{1}{3}=1:\dfrac{9}{5}\\ \Rightarrow\left(x+\dfrac{1}{3}\right)\times\dfrac{3}{2}-\dfrac{1}{3}=\dfrac{5}{9}\\ \Rightarrow\left(x+\dfrac{1}{3}\right)\times\dfrac{3}{2}=\dfrac{5}{9}+\dfrac{1}{3}\\ \Rightarrow\left(x+\dfrac{1}{3}\right)\times\dfrac{3}{2}=\dfrac{8}{9}\\ \Rightarrow x+\dfrac{1}{3}=\dfrac{8}{9}:\dfrac{3}{2}\\ \Rightarrow x+\dfrac{1}{3}=\dfrac{16}{27}\\ \Rightarrow x=\dfrac{16}{27}-\dfrac{1}{3}\\ \Rightarrow x=\dfrac{7}{27}\)

x - \(\frac{5}{8}+\frac{5}{9}:\frac{5}{10}=\frac{9}{5}\)

\(x-\frac{5}{8}+\frac{5}{9}=\frac{9}{5}.\frac{5}{10}=\frac{9}{10}\)

\(x-\frac{5}{8}=\frac{9}{10}-\frac{5}{9}=\frac{31}{90}\)

\(x=\frac{31}{90}+\frac{5}{8}\)

\(x=\frac{349}{360}\)

t mik nha mn 

349/360 nha bn

K mình nha!

\(x-\frac{5}{8}+\frac{5}{9}\div\frac{5}{10}=\frac{9}{5}\)

\(x-\frac{5}{8}+\frac{5}{9}=\frac{45}{50}=\frac{9}{10}\)

\(x-\frac{5}{8}=\frac{9}{10}+\frac{5}{9}\)

\(x-\frac{5}{8}=\frac{131}{90}\)

\(x=\frac{131}{90}+\frac{5}{8}\)

\(x=\frac{1498}{720}=\frac{749}{360}\)