`1 1/3 + 1 1/5 xx y - 4/5 = 2 4/5`
`=> 4/3 + 6/5 xx y = 14/5 + 4/5`
`=> 4/3 + 6/5 xx y = 18/5`
`=> 6/5 xx y = 18/5 - 4/3`
`=> 6/5 xx y = 54/15 - 20/15`
`=> 6/5 xx y = 34/15`
`=> y = 34/15 : 6/5`
`=> y = 34/15 xx 5/6`
`=> y = 34/18`
`=> y = 17/9`
Vậy `y=17/9`
`#QiN`
Bài 2: (đề 2) Tìm y
a) \(2\dfrac{2}{5}-y:2\dfrac{3}{4}=1\dfrac{1}{2}\) b) \(1\dfrac{1}{4}+2\dfrac{1}{5}\) x \(y=2\dfrac{3}{5}\)
c) \(2\dfrac{4}{5}-2\dfrac{1}{4}:y=\dfrac{3}{4}\) c) \(x:3\dfrac{1}{3}=2\dfrac{2}{5}+\dfrac{7}{10}\)
Tìm y
\(\dfrac{2}{5}\) X y : \(\dfrac{7}{4}=\dfrac{7}{8}\)
2\(\dfrac{2}{5}\) : y x 1\(\dfrac{1}{4}\) = 2\(\dfrac{3}{5}\)
\(\dfrac{12}{5}-1\dfrac{2}{5}x\) y = 1\(\dfrac{1}{4}\)
Bài 3: (Đề 2) Tìm y
a) \(2\dfrac{2}{5}:\) y x \(1\dfrac{3}{4}=\dfrac{7}{8}\) b)\(3\dfrac{2}{5}:y:1\dfrac{1}{4}=2\dfrac{3}{5}\) c) \(\dfrac{12}{5}-2\dfrac{2}{5}x\) y \(=1\dfrac{1}{4}\)
tìm y : 3 x y x ( 1/1 x 1/2 + 1/2 x 1/3 + 1/3 x 1/4 + 1/4 x 1/5 + 1/5 x 1/6 ) = 3/4
giúp em với gấp lắm
bài 3: Tìm y
a) \(\dfrac{1}{2}\) : y x \(\dfrac{3}{5}=\dfrac{4}{3}+\dfrac{3}{4}\) b) \(\dfrac{4}{3}-\dfrac{1}{2}\) x y \(=1\) c) \(\dfrac{1}{4}+y\) : \(\dfrac{1}{3}=\dfrac{5}{6}\)
tìm y thỏa mãn :
1 1/3 + 1 1/5 x y - 4/5 = 2 4/5
bài 1:
2 : y x \(\dfrac{3}{5}\) = \(\dfrac{9}{10}\) \(\dfrac{5}{4}-\dfrac{2}{5}:\) y = 1 \(\dfrac{3}{4}x\) (\(\dfrac{7}{2}\) - y) =\(\dfrac{3}{2}\)
so sánh 52/17 và 120/41
3/4 + 1/4 : ( 7/12 - 1/6 )
372,463 x 998 + 744,926
2- 4 + 6 - 8+ 10 - 12 +........ + 98 - 100 + 102
( y + 112) - 113=79
3/4 - y = 1/2
(4/5 - 2 x y) + 1/6= 5/6
(Y + 1) + ( Y + 2 ) + ( Y + 3)+........+ (Y + 50 ) = 1750
Gỉai giúp t bài này với ạ mơn các c rất nhiều ạ giải chi tiết giùm t với ạ t mơn nhìu ạ
Tìm y
a, 3/4 x y = 3/5 + 3/10 b, 3/5 : y = 3/4 - 2/5
c, 3/8 x 5/8 + y = 5/4 d, 3/8 + 5/8 x y = 5/4
e, 1/3 + 2/3 : x = 5/2
ai giải giúp em bài này với em đang cần gấp
