Tìm x biết: a, x:4/5=5/2 b, 636-36×x=456 07/11/2021 Bởi Mackenzie Tìm x biết: a, x:4/5=5/2 b, 636-36×x=456
a, x : 4/5 = 5/2 x = 5/2 x 4/5 x = 2 b, 636 – 36 x X = 456 36 x X = 636 – 456 36 x X = 180 X = 180 : 36 X = 5 Bình luận
a)$x$=$\frac{4}{5}.$$\frac{5}{2}$ $x$=$\2$ b)b, 636-36×x=456 636-456=36x$x$ 180=36x$x$ $x$=180:36 $x$=$5$ Bình luận
a, x : 4/5 = 5/2
x = 5/2 x 4/5
x = 2
b, 636 – 36 x X = 456
36 x X = 636 – 456
36 x X = 180
X = 180 : 36
X = 5
a)$x$=$\frac{4}{5}.$$\frac{5}{2}$
$x$=$\2$
b)b, 636-36×x=456
636-456=36x$x$
180=36x$x$
$x$=180:36
$x$=$5$