471/709 x 49/57 + 471/709 x 8/57
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sao chả có ai giải bài hộ bạn thế bạn giải giúp mik với đang cần gấp
`@` `\text {Ans}`
`\downarrow`
`471 + 43 + 29 + 57`
`= (471 + 29) + (43+57)`
`= 500 + 100`
`= 600`
471+43+29+57
= (471+29)+(43+57)
=500+100
=600
Chúc bn hok tốt!!!
\(\frac{471}{709}\cdot\frac{49}{57}+\frac{471}{709}\cdot\frac{8}{57}\)
\(=\frac{471}{709}\left(\frac{49}{57}+\frac{8}{57}\right)\)
\(=\frac{471}{709}\cdot1=\frac{471}{709}\)
khỏi làm cho khỏe chớ,câu này dài quá viết mỏi tay thì đăng làm gì cho mỏi tay theo mik thì đừng bn nào trả lời vẫn hơn
= 11000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
709+x=6017+1576
709+x=7593
x=7593-709
x=6884
cho cj nha.Cj lớp 4
709 + x - 1576 = 6017
709 + x = 6017 + 1576
709 + x = 7593
x = 7593 - 709
x = 6884
709 + x - 1576 = 60175
709 + x = 60175 + 1576
709 + x = 61751
x = 61751 - 709
x = 61042
vậy x = ...
709 + x - 1576 = 60175
709 + x = 60175 + 1567
709 + x = 61742
x = 61742 - 709
x = 61033
\(x-57-\left[\left(49+x\right)-\left(57-x\right)\right]=x-57-\left(49+x-57+x\right)=x-57-\left(2x-8\right)=x-57-2x+8=-x-49\)
\(\dfrac{x-7}{2010}+\dfrac{x-604}{471}+\dfrac{x-2}{403}=9\)
\(\Leftrightarrow\dfrac{x-7}{2010}-1+\dfrac{x-604}{417}-3+\dfrac{x-2}{403}-5=0\)
\(\Leftrightarrow\dfrac{x-2017}{2010}+\dfrac{x-2017}{471}+\dfrac{x-2017}{403}=0\)
\(\Leftrightarrow\left(x-2017\right)\left(\dfrac{1}{2010}+\dfrac{1}{471}+\dfrac{1}{403}\right)=0\)
Mà \(\dfrac{1}{2010}+\dfrac{1}{471}+\dfrac{1}{403}\ne0\)
\(\Rightarrow x-2017=0\Leftrightarrow x=2017\)
Ez bạn ơi
471/709 x 49/57 + 479/709 x 8/57
= 471/709 x (49/57 + 8/57)
=471/709 x 1
Chúc bạn học tốt ! Nếu thấy mình lm đúng thì k cho mình nha :)