题目内容
解方程或解比例.
①x+20%x=0.36
②X:
=2:
.
①x+20%x=0.36
②X:
| 3 |
| 5 |
| 1 |
| 3 |
(1)x+20%x=0.36,
120%x=0.36,
120%x÷120%=0.36÷120%,
x=0.3;
(2)X:
=2:
,
x=
×2,
x÷
=
÷
,
x=3
.
120%x=0.36,
120%x÷120%=0.36÷120%,
x=0.3;
(2)X:
| 3 |
| 5 |
| 1 |
| 3 |
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 3 |
| 1 |
| 3 |
| 6 |
| 5 |
| 1 |
| 3 |
x=3
| 3 |
| 5 |
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