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 \(=1\dfrac{1}{4}\)
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
a) 3 \(\dfrac{1}{5}\) : 2\(\dfrac{1}{3}\): y = \(\dfrac{12}{7}\)
b) 3 : y x 3 \(\dfrac{1}{2}\)= \(\dfrac{2}{3}x\dfrac{3}{4}\)
c) \(3\dfrac{2}{3}-y+1\dfrac{3}{4}=2\)
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
Các bạn giúp mình nha!
Tìm X và Y:
1. 1/2 + 1/6 x X = 9/2
2. 10/3 - 2/5 : Y = 2/7
3. 32/5 - Y : 2/3 = 1/2
4. 1/5 + 1/7 x Y = 9/8
Tìm y
y + y x 1/3 : 2/9 + y : 2/7 = 25
y : 4 + y : 3 + y = 5/6
y x 5 + y x 3 + y + y =50
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) =\(\dfrac{3}{2}\)
tìm x,y,z biết a,3/x-1=4/y-2=5/z-3 và x+y+z=18 b,3/x-1=4/y-2=5/z-3 và x.y.z=192