a)4/5=24/x 4/24=5/x 5/x=4/24 5/x=1/6 x=5/1/6 x=30 b)35/30=x/6 35/x=30/6 35/x=5 x=35/5 x=7 nếu sai mong bạn thông cảm. Bình luận
Đáp án: $a) \frac{4}{5}$ $= \frac{24}{x}$ $=> 4x = 24.5 $ $x = 120 : 4$ $x = 30$ $b) \frac{35}{30}$ $= \frac{x}{6}$ $=> 30x = 35 . 6$ $x = 210 : 30$ $x = 7$ Bình luận
a)4/5=24/x
4/24=5/x
5/x=4/24
5/x=1/6
x=5/1/6
x=30
b)35/30=x/6
35/x=30/6
35/x=5
x=35/5
x=7
nếu sai mong bạn thông cảm.
Đáp án:
$a) \frac{4}{5}$ $= \frac{24}{x}$
$=> 4x = 24.5 $
$x = 120 : 4$
$x = 30$
$b) \frac{35}{30}$ $= \frac{x}{6}$
$=> 30x = 35 . 6$
$x = 210 : 30$
$x = 7$