0.16+0.16*0.99
0.16+0.16*0.99
C1 : \(0,16+0,16\cdot0,99=0,16+0,15=0,3184\)
C2 : \(0,16+0,16\cdot0,99=0,16\cdot1+0,16\cdot0,99\)
\(=0,16\cdot\left(1+0,99\right)\)
\(=0,16\cdot1,99=0,3184\)
x:0.16=9:x
0.16:x = 20.4
0.16:x=20.4
x = 0.16 : 20.4
x = 16/100 * 2040/100
x = 2/25 * 255/25
x = 102/137
0.16:x=2-0.4
\(0,16\text{ : }x=2-0,4\)
\(0,16\text{ : }x=1,6\)
\(x=0,16\text{ : }1,6\)
\(x=0,1\)
\(\text{Chúc bạn học tốt !}\)
0,16 : x = 2 - 0,4
0,16 : x = 1,6
x= 0,16 : 1,6
x= 0,1
0,16:x=2-0,4
0,16:x=1,6
x =0,16:1,6
x =0,1
0.16:[x:3.5]=2.8
0,16 : ( x : 3,5) = 2,8
x : 3,5 = 0,16 : 2,8
x = 0,16 : 2,8 x 3,5
x = 0,2
Thử lại: 0,16 : (0,2 : 3,5) = 2,8 (đúng)
x:0.16=9:x
\(\frac{x}{0,16}=\frac{9}{x}\Rightarrow x^2=\frac{36}{25}\Rightarrow x=\frac{6}{5}\)hoặc \(x=-\frac{6}{5}\)
x:0.16=9:x
\(\frac{x}{0,16}=\frac{9}{x}\Rightarrow x^2=\frac{36}{25}\Rightarrow x=\frac{6}{5}\)hoặc \(x=-\frac{6}{5}\)
0.16 :(x :3.5) =2.8
0,16 : ( x : 3,5 ) = 2,8
x : 3,5 = 2/35
x = 2/35 * 3,5
x = 0,2
mình làm đầu tiên!
0,16 : ( x : 3,5 ) = 2,8
x : 3,5 = 0,16 : 2,8
x : 3,5 = 0,057142857
x = 0,057142857 x 3,5
x = 0,2
0,16:(x:3,5) = 2,8
x:3,5=0,16:2,8
x:3,5=\(\frac{0,16}{2,8}\)=\(\frac{2}{35}\)
x=\(\frac{2}{35}\)x 3,5
x=\(\frac{7}{35}=\frac{1}{5}\)
4 : x =x : 0.16
\(\frac{4}{x}=\frac{x}{0,16}\)
\(x\cdot x=4\cdot0,16\)
\(x^2=\frac{16}{25}\)
\(x^2=\left(\frac{\pm4}{5}\right)^2\)
\(\Rightarrow x\in\left\{\frac{4}{5};\frac{-4}{5}\right\}\)
\(\frac{4}{x}=\frac{x}{0.16}\)
\(\Rightarrow x\cdot x=4\cdot0.16\)
\(x^2=4\cdot0.16\)
\(x^2=\frac{16}{25}\)
\(\Rightarrow\orbr{\begin{cases}x=\left(\frac{4}{5}\right)^2\\\left(\frac{-4}{5}\right)^2\end{cases}}\)
4÷x=x÷0,16
x×x=4×0,16
x^2=0,64
x=0,8
x=-0,8