题目内容

解比例
0.5:0.8=x:14
x
75
=
1.2
25
x:10%=3:
2
5
2
9
:12=
5
6
:x
1.5:x=0.2:44x:0.5=
2
3
:4
(1)0.5:0.8=x:14
0.8x=0.5×14
0.8x÷0.8=7÷0.8
x=8.75;

(2)
x
75
=
1.2
25

25x=75×1.2
25x÷25=90÷25
x=3.6;

(3)x:10%=3:
2
5

2
5
x=10%×3
2
5
x÷
2
5
=0.3÷
2
5

x=
3
4


(4)
2
9
:12=
5
6
:x
2
9
x=12×
5
6

2
9
x÷
2
9
=10÷
2
9

x=45;

(5)1.5:x=0.2:44
0.2x=1.5×44
0.2x÷0.2=66÷0.2
x=330;

(6)x:0.5=
2
3
:4

4x=0.5×
2
3

4x÷4=
1
3
÷4
x=
1
12
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网