解比例(1)0.8:4=x:8(2) 3 4 :x=3:12(3) 36 x = 54 3 (4)x

2025-01-24 17:57:43
推荐回答(1个)
回答1:


(1)0.8:4=x:8
4x=0.8×8
x=
0.8×8
4

x=1.6

(2)
3
4
:x=3:12
3x=
3
4
×12

3x=9
3x÷3=9÷3
x=3

(3)
36
x
=
54
3

36×3=54x
54x=108
54x÷54=108÷54
x=2

(4)x:
1
2
=
2
3
:4
4x=
1
2
×
2
3

4x=
1
3

4x÷4=
1
3
÷
4
x=
1
12