Tìm x, biết:
25:x=16:10
Tìm số nguyên x, biết:
a) 3 - x = 25 -(-4)
b) x - 10 = (-8) -6
c) x + (-4) = 1 - 9
d) (-5) + x = 16 + (-8)
tìm các số nguyên x biết:(x^2-4/25).(x^2-4).(x^2-16/9).(x^2-10)<0
Tìm x:
25 : x = 16 : 10
25 : x = 16 : 10
25 : x = 1,6
x = 25 : 1,6
x = 15,625
Tìm x:
25 : x = 16 : 10
25 : x = 16 : 10
25 : x = 1,6
x = 25 : 1,6
x = 15,625
Tìm số nguyên x biết \(\left(x^2-\frac{4}{25}\right)\left(x^2-4\right)\left(x^2-\frac{16}{9}\right)\left(x^2-10\right)< 10\)
Tìm x:
25 : X = 16 :10 5,2 x X = 70 - 12,8
\(25:x=16:10\)
\(\Rightarrow25:x=1,6\)
\(\Rightarrow x=25:1,6\)
\(\Rightarrow x=15,625\)
\(5,2\times x=70-12,8\)
\(\Rightarrow5,2\times x=57,2\)
\(\Rightarrow x=57,2:5,2\)
\(\Rightarrow x=11\)
a: =>25:x=1,6
hay x=15,625
b: =>5,2x=57,2
hay x=11
25 : X = 16 :10
\(\Rightarrow25:x=1,6\\ \Rightarrow x=15,625\)
5,2 x X = 70 - 12,8
\(5,2\times x=57,2\\ \Rightarrow x=11\)
Tìm x, biết:
a) x + 99:3 = 55
b) (x - 25): 15=20
c) (3.x - 15).7 = 42
d) (8x - 16)(x-5)=0
e) x.(x+1)=2+4+6+8+10+...+2500
a, \(x\) + 99: 3 = 55
\(x\) + 33 = 55
\(x\) = 55 - 33
\(x\) = 22
b, (\(x\) - 25):15 = 20
\(x\) - 25 = 20 x 15
\(x\) - 25 = 300
\(x\) = 300 + 25
\(x\) = 325
c, (3\(x\) - 15).7 = 42
3\(x\) - 15 = 42:7
3\(x\) - 15 = 6
3\(x\) = 6 + 15
3\(x\) = 21
\(x\) = 21: 3
\(x\) = 7
d, (8\(x\) - 16).(\(x\) -5) = 0
\(\left[{}\begin{matrix}8x-16=0\\x-5=0\end{matrix}\right.\)
\(\left[{}\begin{matrix}8x=16\\x=5\end{matrix}\right.\)
\(\left[{}\begin{matrix}x=16:8\\x=5\end{matrix}\right.\)
\(\left[{}\begin{matrix}x=2\\x=5\end{matrix}\right.\)
Vậy \(x\) \(\in\) {2; 5}
Tìm x
a) 25: x = 16: 10
b) 210: x = 14,92 - 6,52
a) 25 : x = 16 : 10
25 : x = 1,6
x = 25: 1,6
x = 15,625
b) 210 : x = 14,92 - 6,52
210 : x = 8,4
x = 210 : 8,4
x = 25
210 : x = 14,92 - 6,52
210 : x = 8,4
x = 210 : 8,4
x = 25