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\(a,y\times27+y\times30+y\times44-y=10500\\\Rightarrow y\times\left(27+30+44-1\right)=10500\\ \Rightarrow y\times100=10500\\ \Rightarrow y=10500:100\\ \Rightarrow y=105\\ b,y\times285+115\times y=400\\ \Rightarrow y\times\left(285+115\right)=40\\ \Rightarrow y\times400=400\\ y=400:400\\ \Rightarrow y=1\)
\(a,\Rightarrow y\times\left(27+30+44-1\right)=10500\\ \Rightarrow y\times100=10500\\ \Rightarrow y=105\\ b,\Rightarrow y\times\left(285+115\right)=400\\ \Rightarrow y\times400=400\\ \Rightarrow y=1\)
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325 x 6 + 6 x 560 + 6 x 155
= 1950 + 3360 + 930
= 5310 + 930
= 6000
325 x 6 + 6 x 560 + 6 x 115
=6 x ( 325 + 115 + 560 )
=6 x 1000
= 6000
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24225:x=285
x=24225:285
x=85
Vậy đáp án đúng là x=85.
Đáp án B
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x:125=\(\frac{69}{115}\)
x=\(\frac{69}{115}\times125\)
x=75
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a,456*65+456*34+456
=456*65+456*34+456*1
=456*(65+34+1)
=456*100
=45600
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25x4= 100
25 x 40=1000
25x400=10000
25 x 4 +25 x400 + 25x40
=100+10000+1000
=11100
nhớ k cho mình nha
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\(\frac{x}{23}=\frac{x}{125}\)
\(\Rightarrow x\times23=x\times115\)
\(\Rightarrow x=0\left(tm\right)\)
\(\frac{x}{23}=\frac{x}{115}\)
\(115x=23x\)
\(115x-23x=0\)
\(92x=0\)
\(x=0\)
=.= hok tốt!!
\(x\times\left(285+115\right)\)\(=400\)
\(x\times400=400\)
\(x=400\div400\)
\(x=1\)
@Nghệ Mạt
#cua
(285+115)x x = 400
400 x x = 400
x= 400 : 400
x= 1