x . 5,2 : 4,5 = 10,4
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X x5.2:4.5=10.4
X x5.2=10.4x4.5
X x5.2=46.8
X=46.8:5.2
X=9
Vậy X=9
a)x*5,2:4,5=10,4
x*5,2=10,4*4,5
x*5,2=46,8
x =46,8:5,2
x =9
b)5/7*x+2/7*x=2/3
x*(5/7+2/7)=2/3
x*1 =2/3
x =2/3:1
x =2/3
a.
\(x\times5,2\div4,5=10,4\)
\(x\times5,2=10,4\times4,5\)
\(x\times5,2=46,8\)
\(x=46,8\div5,2\)
\(x=9\)
b.
\(\dfrac{5}{7}\times x+\dfrac{2}{7}\times x=\dfrac{2}{3}\)
\(x\times\left(\dfrac{5}{7}+\dfrac{2}{7}\right)=\dfrac{2}{3}\)
\(x\times1=\dfrac{2}{3}\)
\(x=\dfrac{2}{3}\div1\)
\(x=\dfrac{2}{3}\)
a) X*5,2 : 4,5 =10,4
X*5,2=10,4*4,5
X*5,2=46,8
X =46,8:5,2
X =9
b) 5/7*x+2/7*x=2/3
(5/7+2/7)*x=2/3
1*x =2/3
x =2/3:1
x =2/3
a) x * 5.2 : 4.5 = 10.4
x = 10.4 * 4.5 : 5.2
x = 9
b) 17.4 : x * 5.3 = 36.888
17.4 : x = 36.888 : 5.3
17.4 : x = 6.96
x = 17.4 : 6.96
x = 2.5
a) X x 5,2 :4,5 = 10,4 b)17,4 : X x 5,3 = 36,888
X x 26/5 : 9/2 =52/5 87/5 : X x 53/10 = 4611/125
X x 52/45 =52/5 87/5 : X = 4611/125 : 53/10
X = 52/5 : 53/45 87/5 : X =174/25
X =9 X = 87/5 : 174 /125
vậy X=9 X =25/2
vậy X= 25/2
CHÚC BẠN HOK TỐT
5.7*16.2+16.2*4.3-6.2*4.8+6.2*5.2=(5.7*16.2+16.2*4.3)-(6.2*4.8+6.2*5.2)=16.2(5.7+4.3)-6.2(4.8+5.2)=16.2*10+6.2*10=10(16.2-6.2)=10
13.4+12.3+11.2+10.4-11.5-12.6-0.4=(13.4+12.3+11.2+10.4)-(11.5+12.6+0.4)=47.3-24.5=22.8
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\(x+4,5\times2=86,2\)
\(x+9=86,2\)
\(x=86,2-9\)
\(x=77,2.\)
\(x\times5,2+4,8=10\)
\(x\times5,2=10-4,8\)
\(x\times5,2=5,2\)
\(x=5,2:5,2\)
\(x=1.\)
a)
X x 5,2 : 4,5 = 10 ,5
X x 5,2 = 10,5 x 4,5
X x 5,2 = 47,25
X = 47,25 : 5,2
X = 945/104
b)
5/7 x X + 2/7 x X = 2/3
X x ( 5/7 + 2/7 ) = 2/3
X x 1 = 2/3
x = 2/3 : 1
x = 2/3
mk ko viết lại đề nhé!
=>x . 5,2 =10,4 . 4,5
=>x . 5,2 = 46,8
=>x=9
Vậy x=9
CHÚC BN HỌC TỐT
NHỚ TK MK NHA
x.5,2:4,5=10,4 =>x.5,2 =10,4.4,5 =>x.5,2 =46,8 =>x =46,8:5,2 =>x =9