22/5 : x= 44/5:5/2
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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
\(\frac{22}{5}\)\(:\)\(x\)\(=\)\(\frac{44}{5}\)\(:\)\(\frac{5}{2}\)
\(\frac{22}{5}\)\(:\)\(x\)\(=\)\(\frac{88}{25}\)
\(x\)\(=\)\(\frac{22}{5}\)\(:\)\(\frac{88}{25}\)
\(x\)\(=\)\(\frac{5}{4}\)
a) 4/9.x=25/18:2/3
4/9.x=25/18.3/2
4/9.x=75/36
x=75/36:4/9
x=75/36x4/9
x=675/144
b)x:4/5=25/8:5/4
x:4/5=25/8x4/5
x:4/5=100/40
x:4/5=5/2
x=5/2x4/5
x=20/10
x=2/1=2
c)22/5:x=44/5:5/2
22/5:x=44/5x2/5
22/5:x=88/25
x=88/25:22/5
x=88/25x22/5
x=440/550
x=4/5
h nk
A) \(\frac{4}{5}\)x\( y\)=\(\frac{5}{7}:\frac{3}{14}=\frac{10}{3}\)
\(\Rightarrow y=\frac{10}{3}:\frac{4}{5}=\frac{10}{3}.\frac{5}{4}=\frac{25}{6}\)
B) \(\Rightarrow\frac{22}{5}:y=\frac{44}{5}:\frac{5}{2}=\frac{44}{5}.\frac{2}{5}=\frac{88}{25}\)
\(\Rightarrow y=\frac{22}{5}:\frac{88}{25}=\frac{22}{5}.\frac{25}{88}=\frac{5}{4}\)
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
a)\(x:\frac{9}{22}=44\) b)\(x:\frac{5}{11}=33\) c)\(x:\frac{4}{33}=22\)
\(x\) \(=44\times\frac{9}{22}\) \(x\) \(=33\times\frac{5}{11}\) \(x\) \(=22\times\frac{4}{33}\)
\(x\) \(=18\) \(x\) \(=15\) \(x\) \(=\frac{8}{3}\)
A) X : 9/22 = 44
X=44x9/22
X=18
B) X : 5/11 = 33
X=33x5/11
X=15
C) X : 4/33 = 22
X=22x4/33
X=8/3
\(\frac{22}{5}:x=\frac{44}{5}:\frac{5}{2}\)
\(\frac{22}{5}:x=\frac{44}{5}x\frac{2}{5}\)
\(\frac{22}{5}:x=\frac{88}{25}\)
\(x=\frac{22}{5}:\frac{88}{25}\)
\(x=\frac{22}{5}x\frac{25}{88}\)
\(x=\frac{5}{4}\)
\(\frac{22}{5}:x=\frac{44}{5}:\frac{5}{2}\)
\(\Rightarrow\frac{22}{5}:x=\frac{88}{25}\)
\(\Rightarrow x=\frac{88}{25}\times\frac{22}{5}\)
\(\Rightarrow x=\frac{1936}{125}\)