12,5+x:0.25-2.25=12.25
2 1/3 + ( - 0.25 ) + 3/8 -2.25 + 1/2 + 5.1
a, \(\sqrt{144}.\sqrt{\frac{49}{69}}.\sqrt{0.01}\)
b,\(\sqrt{0.25}-\sqrt{225}+\sqrt{2.25}\)
c,\(72:\sqrt{3^3+3^2}-3\sqrt{5^2-3^2}\)
Lời giải:
a)
\(\sqrt{144}.\sqrt{\frac{49}{69}}\sqrt{0,01}=12.\frac{7}{\sqrt{69}}.0,1=\frac{8,4}{\sqrt{69}}=\frac{42\sqrt{69}}{345}\)
b)
\(\sqrt{0,25}-\sqrt{225}+\sqrt{2,25}=\sqrt{0,5^2}-\sqrt{15^2}+\sqrt{1,5^2}\)
\(=0,5-15+1,5=-13\)
c)
\(72:\sqrt{3^3+3^2}-3\sqrt{5^2-3^2}\)
\(=\frac{72}{\sqrt{36}}-3\sqrt{16}=\frac{72}{6}-3.4=12-12=0\)
12.25+12.15+12.25+12.25-100
x*12.25-x+x*2.75=1050
\(x\)x12.25-\(x\)+\(x\)x 2.75=1050
\(x\)x ( 12,25 - 1 + 2,75 ) = 1050
\(x\)x 14 = 1050
\(x\)= 1050 : 14
\(x\)= 75
Vậy \(x\)= 75
# HOK TỐT #
Ta có : X*12.25-X+X*2.75=1050
X (12.25-1+2.75)=1050
X*14=1050
X=75
Vậy X=75
# chúc cậu học tốt #
2.25 x 0.5 + 2.25 : 2 + 3.75
=2.25*\(\left(0.5+2\right)\)+3.75
=2.25*2.5+3.75
=5.625+3.75
=5.7
15,56 + 14,41 = ?
4,25 - 0.12 = ?
15.36 x 12.25 = ?
15,56 + 14,41 = 29,97
4,25 - 0.12 = 4,13
15.36 x 12.25 = 188,16
15.56 + 14.41 = 29.97
4.25 - 0.12= 4.13
15.36 x 12.25 = 188.16
tick nha
15,56 + 14,41 = 29,97
4,25 - 0.12 = 4,23
15,36 x 12,25 = 188,16
tick cho minh nha moi nguoi
0,25 X x = 0,75+0.25
x : 1.25=1/4 - 0.25
0.25 * x = 0.75 + 0.25
0,25 X x = 0,75+0,25
0,25 X x = 1
x = 1:0,25
x = 4
x : 1.25 =1/4 - 0,25
x : 1,25 = 0,75
x = 0,75 x 1,25
x = 0,9375
0,25 X x = 0,75+0,25
0,25 X x = 1
x = 1:0,25
x = 4
0,25 x x = 0,75+0,25
0,25x x = 1
x = 1 : 0,25
x = 4
x : 1,25 =\(\frac{1}{4}\) - 0,25
x : 1,25 = \(\frac{1}{4}-\frac{25}{100}\)
x : 1,25 = \(\frac{1}{4}-\frac{1}{4}\)
x : 1,25 = 0
x = 0 x 1,25
x = 0
0,25 x x = 0,75+0,25
0,25x x = 1
x = 1 : 0,25
x = 4
a) \(0,25\times x=0,75+0,25\)
\(0,25\times x=1\)
\(x=1:0,25\)
\(x=4\)
Vậy \(x=4\)
b) \(x:1,25=\frac{1}{4}-0,25\)
\(x:1,25=0,25-0,25\)
\(x:1,25=0\)
\(x=0\times1,25\)
\(x=0\)
Vậy \(x=0\)
c) \(0,25\times x=0,75+0,25\)
\(0,25\times x=1\)
\(x=1:0,25\)
\(x=4\)
Vậy \(x=4\)
Chúc bạn học tốt !!!
X : 0,1 - X : 4 - X x 0,75 = 2.25
x/0.25+x*0.25=3.75