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解比例.0.5:x=23:0.25x25=1.27535:712=910:x15:x=0.2:44.
题目详情
解比例.
0.5:x=
|
| ||||||
| 15:x=0.2:44. |
▼优质解答
答案和解析
(1)0.5:x=
:0.25,
x=0.25×0.5,
x=1.25,
x=1.25÷
,
x=1.875,
=
,
75x=25×1.2,
x=
,
x=0.4,
:
=
:x,
x=
×
,
x=
,
x=
÷
,
x=
,
15:x=0.2:44,
0.2x=15×44,
x=
,
x=3300.
2 |
3 |
2 |
3 |
2 |
3 |
x=1.25÷
2 |
3 |
x=1.875,
x |
25 |
1.2 |
75 |
75x=25×1.2,
x=
25×1.2 |
75 |
x=0.4,
3 |
5 |
7 |
12 |
9 |
10 |
3 |
5 |
7 |
12 |
9 |
10 |
3 |
5 |
21 |
40 |
x=
21 |
40 |
3 |
5 |
x=
7 |
8 |
15:x=0.2:44,
0.2x=15×44,
x=
15×44 |
0.2 |
x=3300.
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