tim y biet 15/22:y/8 =4/33
Tìm y biết: y/8 = 15/22 : 4/33
Tìm y biết : y/8= 15/22:4/33
\(\dfrac{y}{8}=\dfrac{45}{8}\)
\(y=45\)
tim x,y biet 15^x+8=y^2
Tim y biết
\(\frac{15}{22}\):\(\frac{y}{6}\)=\(\frac{4}{33}\)
nhanh nha ai nhanh nhất mình tick
\(\frac{15}{22}:\frac{33}{6}=\frac{4}{33}\)
\(\frac{15}{22}+\frac{y}{6}=\frac{4}{33}\)
\(\frac{y}{6}=\frac{15}{22}\div\frac{4}{33}\)
\(\frac{y}{6}=1\)
Vậy y = 6
k mk nha
\(\frac{15}{22}:\frac{y}{6}=\frac{4}{33}\)
\(\Rightarrow\frac{y}{6}=\frac{15}{22}:\frac{4}{33}\)
\(\Rightarrow\frac{y}{6}=\frac{15}{22}.\frac{33}{4}\)
\(\Rightarrow\frac{y}{6}=\frac{45}{8}\)
\(\Rightarrow y.8=6.45\)
\(\Rightarrow y.8=270\)
\(\Rightarrow y=270:8\)
\(\Rightarrow y=33,75\)
Tim x,y,z biet
x/2=y/33=z/4 va xy+yz+zx=104
1 tim cac so nguyen x,y biet x/7=6/21 -5/y=20/28 1/2=x/12 x/8=-28/32 3/y=12/24 3/4=15/y 2 viet 3 phan so bang phan so -10/15
Tim x,y,z biet:
\(\frac{x+4}{7+y}=\frac{4}{7}va\) /x+y/ =22
Tim y biet :
y/15 < 4/45
y/15 < 4/45
<=> yx3/45 < 4/45
<=> yx3<4
=> y < hoặc = 1
1 tim cac so nguyen x,y biet
x/8=-28/32
3/y=12/24
3/4=15/y
giup xu nha ti tick cho
1) \(\frac{x}{8}=\frac{-28}{32}\)
=> \(x.32=8.-28\)
=> \(x.32=-224\)
=> \(x=-224:32=-7\)
2) \(\frac{3}{y}=\frac{12}{24}\)
hay \(\frac{3}{y}=\frac{3}{6}\)
=> \(y=6\)
3) \(\frac{3}{4}=\frac{15}{y}\)
=> \(3.y=4.15\)
=>\(3.y=60\)
=> \(y=60:3=20\)