题目内容
解方程或比例
÷
=
0.15:18%=(7+0.5):x.
| 5 |
| w |
| 2 |
| 3 |
| 3 |
| 4 |
0.15:18%=(7+0.5):x.
(1)
÷
=
,
÷
×
=
×
,
=
,
w=10;
(2)0.15:18%=(7+0.5):x.
0.15x=0.18×7.5,
0.15x=1.35,
0.15x÷0.15=1.35÷0.15,
x=9.
| 5 |
| w |
| 2 |
| 3 |
| 3 |
| 4 |
| 5 |
| w |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 4 |
| 2 |
| 3 |
| 5 |
| w |
| 1, |
| 2 |
w=10;
(2)0.15:18%=(7+0.5):x.
0.15x=0.18×7.5,
0.15x=1.35,
0.15x÷0.15=1.35÷0.15,
x=9.
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