22 x 2 =?
44 x 2 =?
So sánh : A = 5 x ( 11 x 13 - 22 x 26 ) /22 x 26 - 44 x 52 và B = 138^2 - 690 / 137^2 -548
22 x 2
44 x 2
Tìm X
a.22/5:x=44/5:5/2
Đã có 3 câu trả lời lận, sao còn lặp lại :/?
\(a,\frac{22}{5}\div x=\frac{44}{5}\div\frac{5}{2}\)
\(\Rightarrow\frac{22}{5}\div x=\frac{88}{25}\)
\(\Rightarrow x=\frac{5}{4}\)
~Study well~
#Thạc_Trân
Thank you kim thạc trân for the amazing help!!!!!!!!
22/5 : x= 44/5:5/2
\(\frac{22}{5}:x=\frac{44}{5}:\frac{5}{2}\)
\(\frac{22}{5}:x=\frac{44}{5}x\frac{2}{5}\)
\(\frac{22}{5}:x=\frac{88}{25}\)
\(x=\frac{22}{5}:\frac{88}{25}\)
\(x=\frac{22}{5}x\frac{25}{88}\)
\(x=\frac{5}{4}\)
\(\frac{22}{5}:x=\frac{44}{5}:\frac{5}{2}\)
\(\Rightarrow\frac{22}{5}:x=\frac{88}{25}\)
\(\Rightarrow x=\frac{88}{25}\times\frac{22}{5}\)
\(\Rightarrow x=\frac{1936}{125}\)
22/5 : x= 44/5:5/2
22/5 : x = 88/25
x = 22/5 . 88/25
x = 5/4
33 x 3 =?
22 x 2 =?
44 x 1 =?
33 x 3 = 99
22 x 2 = 44
44 x 1 = 44
ai qua thì nhớ cho mk nha ^_-,cảm ơn các nhìu lắm lun
33 x 3 = 99
22 x 2 = 44
44 x 1 = 44
Tim X
a. 22/5:X=44/5:5/2
b. 8,35xX+6,65xX=45
a)\(\frac{22}{5}:x=\frac{44}{5}:\frac{5}{2}=\frac{44}{5}.\frac{2}{5}=\frac{84}{25}\)
\(\Rightarrow x=\frac{22}{5}:\frac{84}{25}=\frac{22}{5}.\frac{25}{84}=\frac{55}{42}\)
b) \(8,35x+6,65x=45\)
\(\Rightarrow\left(8,35+6,65\right)x=45\Rightarrow15x=45\)
\(\Rightarrow x=45:15=3\)
\(a,\frac{22}{5}\div x=\frac{44}{5}\div\frac{5}{2}\)
\(\Rightarrow\frac{22}{5}\div x=\frac{88}{25}\)
\(\Rightarrow x=\frac{5}{4}\)
\(b,8,35\times x+6,65\times x=45\)
\(\Rightarrow x\times\left(8,35+6,65\right)=45\)
\(\Rightarrow x\times15=45\)
\(\Rightarrow x=3\)
~Study well~
#Thạc_Trân
a) \(\frac{22}{5}:x=\frac{44}{5}:\frac{5}{2}\)
\(\frac{22}{5}:x=\frac{88}{25}\)
\(x=\frac{22}{5}:\frac{88}{25}\)
\(x=\frac{5}{4}\)
b) \(8,35.x+6,65.x=45\)
\(\left(8,35+6,65\right).x=45\)
\(15.x=45\)
\(x=45:15\)
\(x=3\)
- Dấu . là dấu nhân
Tính bằng cách thuận tiện nhất
\(\dfrac{13}{18}\) x \(\dfrac{9}{26}\) x \(\dfrac{2}{3}\) =
\(\dfrac{44}{15}\) x \(\dfrac{5}{22}\) x \(\dfrac{3}{2}\) =
a: =13/26*9/18*2/3=2/3*1/4=2/12=1/6
b: =44/22*5/15*3/2=2*1/3*3/2=2*1/2=1
33 x 33 = 36
44 x 44 = 64
22 x 22 = ?
11 x 11 = ?
Bài 2:
CMR: 44...44(n c/s 4 ) X 22...22 (n c/s 2)
Là tích 2 số nguyên liên tiếp
Bài 3 :Cho x3=2p+1 , x thuộc N
Tìm x