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100+200+300+400+500+300:2
=100+200+300+400+500+150
=(100+500)+(200+400)+(300+150)
=600+600+450
=600x2+450
=1200+450
=1650
ai tích mik mik hứa tích lại
\(100+200+300+400+500+300:2\)
\(=100+200+300+400+500+150\)
\(=300+300+400+500+150\)
\(=600+400+500+150\)
\(=1000+500+150\)
\(=1500+150\)
\(=1650\)
\(Ai\)\(k\)\(minh,minh\)\(k\)\(lai!!\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
100.200.300 + 100 + 200 + 300 + 400 = 6000 000 + 1000 = 6001 000
1000 . 10.20.30.40 = 10 000 x 24 000 = 240 000 000
![](https://rs.olm.vn/images/avt/0.png?1311)
co so so hang la
(100000-100)/1+1=99901(so)
Tong day so la
(100000+100)/2*99901=5000045050
dap so:5000045050
![](https://rs.olm.vn/images/avt/0.png?1311)
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,\dfrac{96}{200}=48\%\)
\(b,\dfrac{105}{300}=35\%\)
\(c,\dfrac{188}{400}=47\%\)
\(d,\dfrac{513}{900}=57\%\)
a, 96/200= 48/100= 48%
b, 105/300=35/100=35%
c,188/400=47/100=47%
d,513/900=57/100=57%
![](https://rs.olm.vn/images/avt/0.png?1311)
X x 100 + X x 200 + X x 300 + X x 400 + X x 500 + X x 512 = 2012
X x (100 + 200 + 300 + 400 + 500 + 512) = 2012
X x 2012 = 2012
X = 2012 : 2012
X = 1
thanks.
X * 100 + X* 200 + X * 300 + X * 400 + X * 500 + X * 512 = 2012
X * (100 + 200 + 300 + 400 + 500 + 512) = 2012
X * 2012 = 2012
X = 2012 : 2012
X = 1
Vậy X bằng 1
![](https://rs.olm.vn/images/avt/0.png?1311)
= 923 nha
Hok tốt
= 923
HT