Tìm X
8.75 x X + 1.25 x X =20
8.75 x X + 1.25 x X =20
8.75 x X + 1.25x X =20
X x ( 8.75+ 1.25) = 20
X x 10 =20
X = 20 : 10
X = 2
8.75 x X + 1.25 x X = 20
Hỏi X = ?
8,75*x+1,25*x=20
x*(8,75+1,25)=20
x*10 =20
x =20:10
x =2
2.5 x 9.5 x 4 + 20 x 9.5 x 0.5 + 9.5 x 8 x 1.25
\(2,5\) x \(9,5\) x \(4+20\) x \(9,5\) x \(0,5\) +\(9,5\) x \(8\) x \(1,25\)
\(=9,5\) x ( \(2,5\) x \(4+20\) x \(0,5\) + \(8\) x \(1,25\) )
\(=9,5\) x \(30\)
\(=285\)
2.5 x 9.5 x 4 + 20 x 9.5 x 0.5 + 9.5 x 8 x 1.25
=9.5*10+9.5*10+9.5+10
=9.5*(10+10+10)
=9.5*30
=2850
`2,5xx9,5xx4+20xx9,5xx0,5+9,5xx8xx1,25`
`=9,5xx10+9,5xx10+9,5xx10`
`=9,5xx(10+10+10)`
`=9,5xx30`
`=285`
= 9,5 x (2,5 + 4+20+0,5+8+1,25)
=9,5x36,25
=344,375
8.75*x+1.25*x=20
\(\Rightarrow\) (8,75+1,25)*x = 20
\(\Rightarrow\) 10*x=20
\(\Rightarrow\) x = 2
mk nhanh nhất
( 8,75 + 1,25 ) * x = 20
10 * x = 20
x = 20 / 10
x = 2
đs : x=2
(8,75+1,25)*x=20
10*x=20
x=20:10x=2 Câu trả lời được online math lựa trọn
8.75 * x + 1.25 * x =20
( 8,75 + 1,25 ) * x = 20
10 * x = 20
x = 20 : 10
x = 2
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8.75 x y + 1.25 x y= 20
( 8,75 + 1,25 ) x Y = 20
10 x Y = 20
Y=20 : 10
Y=2
( 8,75 + 1.25 ) xy = 20
10 x y = 20
y = 20 : 10
y = 2
( 8,75 + 1,25 ) \(\times\) y = 20
10 \(\times\) y =20
y = 20 : 10
y =2
8.75 nhan x+1.25 nhan x=20
2.5 x 9.5 x 4 + 20 x 9.5 x 0.5 + 9.5 x 8 x 1.25
lời giải rõ ràng