\(x\)\(:\)\(0,1\)\(+\)\(x\)\(\cdot5\)\(=24\)
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(Xx2)+(0,25+0,1)=24
Xx2+0,35=24
Xx2=24-0,35
Xx2=23,65
X=23,65:2
X=11,825
x:0,25+x:0,1+x=24
X x 4 + X x 10 + X = 24
X x (4+10+1)= 24
X x 15= 24
X= 24:15
X= 1,6
________
0,16:x=2-0,4
0,16:x = 1,6
x= 1,6 : 0,16
x= 10
x:0,1+x*5=24
x*10+x*5=24
x*[10+5]=24
x*15=24
x=24:15=1,6
Vậy x bằng 1,6
a: \(=\dfrac{2^{13}\cdot5^7\left(2^{17}+5^{20}\right)}{2^{10}\cdot5^7\left(2^{17}+5^{20}\right)}=2^3\)
b: \(M=\left(7-4\right)^{\left(7-5\right)^{\left(7-6\right)^{\left(7+6\right)^{\left(7+5\right)}}}}\)
\(=3^{2\cdot1\cdot13\cdot12}=3^{312}\)
\(\left(5.x\right)+\left(x.5\right)=25\)
\(\Leftrightarrow10x=25\)
\(\Leftrightarrow x=\frac{5}{2}\)
Vậy \(x=\frac{5}{2}\)
1) 10 000
2) 16 000
3) 1,2
4) 0.1
5) 460
6) 48
7) 240
~ Chúc bạn học tốt <3
\(x:0,1+x\times5=24\)
\(\Rightarrow x:\frac{1}{10}+x\times5=24\)
\(\Rightarrow x\times10+x\times5=24\)
\(\Rightarrow x\times\left(10+5\right)=24\)
\(\Rightarrow x\times15=24\)
\(\Rightarrow x=\frac{24}{15}=\frac{8}{5}\)
\(X:0,1+Xx5=24\)
\(\Rightarrow Xx10+Xx15=24\)
\(\Rightarrow Xx\left(10+15\right)=24\)
\(\Rightarrow Xx25=24\)
\(\Rightarrow X=\frac{24}{25}\)
Vậy \(X=\frac{24}{25}\)
Chúc bạn học tốt !!!
\(2^{x+2}\cdot3^{x+1}\cdot5^x=10800\\\Rightarrow2^x\cdot2^2\cdot3^x\cdot3\cdot5^x=10800\\\Rightarrow(2^x\cdot3^x\cdot5^x)\cdot(2^2\cdot3)=10800\\\Rightarrow(2\cdot3\cdot5)^x\cdot(4\cdot3)=10800\\\Rightarrow30^x\cdot12=10800\\\Rightarrow30^x=10800:12\\\Rightarrow30^x=900\\\Rightarrow30^x=30^2\\\Rightarrow x=2\)
\(2^{x+2}.3^{x+1}.5^x=10800\\ \Leftrightarrow2^x.2^2.3^x.3.5^x=10800\\ \Leftrightarrow12.\left(2.3.5\right)^x=10800\\ \Leftrightarrow12.30^x=10800\\ \Leftrightarrow30^x=\dfrac{10800}{12}=900=30^2\\ Vậy:x=2\)
1) \(31,5\cdot0,1+3x=7,65\)
\(\Leftrightarrow3,15+3x=7,65\)
\(\Leftrightarrow3x=4,5\)
\(\Leftrightarrow x=1,5\)
b)\(\frac{3}{8}+\left(x-\frac{5}{24}\right):\frac{2}{3}=1\)
\(\Leftrightarrow\left(x-\frac{5}{24}\right):\frac{2}{3}=\frac{5}{8}\)
\(\Leftrightarrow x-\frac{5}{24}=\frac{5}{12}\)
\(\Leftrightarrow x=\frac{5}{8}\)
1. \(31,5.0,1+3x=7,65\)
\(\Leftrightarrow3,15+3x=7,65\)
\(\Leftrightarrow3x=4,5\)
\(\Leftrightarrow x=1,5\)
2. \(\frac{3}{8}+\left(x-\frac{5}{24}\right):\frac{2}{3}=1\)
\(\Leftrightarrow\left(x-\frac{5}{24}\right):\frac{2}{3}=\frac{5}{8}\)
\(\Leftrightarrow x-\frac{5}{24}=\frac{5}{8}.\frac{2}{3}\)
\(\Leftrightarrow x-\frac{5}{24}=\frac{5}{12}\)
\(\Leftrightarrow x=\frac{5}{8}\)
=> x . 10 + x . 5 = 24
=> x . ( 10 + 5 ) = 24
=> x . 15 = 24
=> x = 24 : 15
=> x = 1,6
Tk mk nha
\(x:0,1+x.5=24\)
\(x:\frac{1}{10}+x\cdot5=24\)
\(x\cdot10+x\cdot5=24\)
\(x\cdot\left(10+5\right)=24\)
\(x\cdot15=24\)
\(x=\frac{24}{15}\)