题目内容
解比例:
3:x=9:15
=
:
=x:9.
3:x=9:15
| x |
| 25 |
| 1.2 |
| 75 |
| 2 |
| 3 |
| 5 |
| 6 |
3:x=9:15
9x=3×15
9x=45
x=5
=
75x=1.2×25
75x=30
x=
:
=x:9
x=
×9
x=6
x=
故答案是x=5,x=
,x=
.
9x=3×15
9x=45
x=5
| x |
| 25 |
| 1.2 |
| 75 |
75x=1.2×25
75x=30
x=
| 2 |
| 5 |
| 2 |
| 3 |
| 5 |
| 6 |
| 5 |
| 6 |
| 2 |
| 3 |
| 5 |
| 6 |
x=
| 36 |
| 5 |
故答案是x=5,x=
| 2 |
| 5 |
| 36 |
| 5 |
练习册系列答案
相关题目