题目内容
解比例.
| 1.2:7.2%=x:
|
(1)
:
=1.875:x,
x=
×1.875,
x÷
=0.75÷
,
x=3;
(2)1.2:7.2%=x:
,
7.2%x=1.2×
,
7.2%x÷7.2%=0.24÷7.2%,
x=3
.
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| 4 |
| 2 |
| 5 |
| 1 |
| 4 |
| 2 |
| 5 |
| 1 |
| 4 |
| 1 |
| 4 |
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| 4 |
x=3;
(2)1.2:7.2%=x:
| 1 |
| 5 |
7.2%x=1.2×
| 1 |
| 5 |
7.2%x÷7.2%=0.24÷7.2%,
x=3
| 1 |
| 3 |
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