123:x+12:x=4,5
123:x+12;x=4,5
123:x+12:x=4,5
(123+12):x =4,5
135 :x=4,5
x=135:4,5
x=30
Tk cho mk nha!
123 : x + 12 : x = 4,5
( 123 + 12 ) : x = 4,5
135 : x = 4,5
x = 135 : 4,5
x = 30
123 : x + 12 : x = 4,5
bạn nào nhanh mình tick cho mình mong các bạn tick những câu trả lời cho mình đc ko
123 : x + 12 : x = 4,5
x = ( 123 + 12) : x = 4.5
x = 135 : x = 4.5
x = 135 : 4.5
x = 30
\(123:x+12:x=4,5\)
\(\left(123+12\right):x=4,5\)
\(135:x=4,5\)
\(x=135:4,5\)
\(x=30\)
\(123:x+12:x=4,5\)
\(123\times\frac{1}{x}+12\times\frac{1}{x}=4,5\)
\(\frac{1}{x}\times\left(123+12\right)=4,5\)
\(4,5x=135\)
\(x=135:4,5\)
\(x=30\)
Vậy x=30
Tìm x biết
a) 3 3 x − 1 2 3 + 1 9 = 0
b) x + 3 5 2 + 1 16 25 = 9 % : 4 , 5 %
Bài 1.Đặt tính rồi tính:
1) 12,5 x 4,5
2) 123 x 321
1, 12, 5 x 4,5 = 56, 25
2, 123 x 321 = 39 483
Cụ MAIZ
12 x X = 123 x 123 + 409
12 x X = 123 x 123 + 409
12 x X = 15129 + 409
12 x X = 15538
X = 15538 : 12
X = \(\dfrac{7769}{6}\)
\(12.X=123.123+409\)
\(12.X=15129+409\)
\(12.X=15538\)
\(X=15538:12\)
\(X=\dfrac{7769}{6}\)
Vậy \(X=\dfrac{7769}{6}\)
Ghi chú 12 . X = 12 x X
BÀI 1 : TÌM X
a) 123 : X + X = 4,5
X = ???
b) 89 : X - 51,5 : X = 62,5
X = ???
GIÚP MÌNH NHA ! CÁM ON
a) 123 : x + 12 : x = 4,5
= (123+12) : x = 4,5
= 135 : x = 4,5
x = 123 : 4,5
x = .........
1/2 × x +150 ℅ × x = 2004
1/2 × x + 1/8x = 3/4
2- (3/4-x)= 7/12
(2x -4,5):3/4-1/3 =1
Bai 2 tinh gia tri bieu thuc
Q = (1/99+12/999+123/999)×(1/2-1/3-1/6)
℅ la phan tram
Nhanh nhe ai dung minh se thich va keu goi ban be thich nua thank you
2,
Q=\(\left(\frac{1}{99}+\frac{12}{999}+\frac{123}{999}\right)x\left(\frac{1}{2}-\frac{1}{3}-\frac{1}{6}\right)\)
= \(\left(\frac{1}{99}+\frac{12}{999}+\frac{123}{999}\right)x\left(\frac{3+\left(-2\right)+\left(-1\right)}{6}\right)\)
=\(\left(\frac{1}{99}+\frac{12}{999}+\frac{123}{999}\right)x0\)
Vậy Q=0
12 ? 3 = 4 x 4 = ?
20 x 3 = ?
90 x 1 = ?
123 - 123 = ?
10 x 9 = ? / 9 = ?
12 - 9 = ? x 9 = ?
23 - 5 = ?
123 + 12 = ?
1000 - 200 = ?
333 - 111 = ?
12 : 3 = 4 x 4 = 16
20 x 3 = 60
90 : 1 = 90
123 - 123 = 0
10 x 9 = 90 : 9 = 10
12 - 9 = 3 x 9 = 27
23 - 5 = 18
123 + 12 = 135
1000 - 200 = 800
333 - 111 = 222
\(20.3=60\)
\(90.1=90\)
\(123-123=0\)
\(10.9=\frac{810}{9}=90\)
\(23-5=15\)
\(123+12=135\)
\(1000-200=800\)
\(333-111=222\)