题目内容
解方程或比例.
| 0.8×(x-0.4)=8 |
|
(1)0.8×(x-0.4)=8,
0.8×(x-0.4)÷0.8=8÷0.8,
x-0.4+0.4=10+0.4,
x=10.4;
(2)
:x=
:3,
x=3×
,
x×12=
×12,
x=2.4.
0.8×(x-0.4)÷0.8=8÷0.8,
x-0.4+0.4=10+0.4,
x=10.4;
(2)
| 1 |
| 15 |
| 1 |
| 12 |
| 1 |
| 12 |
| 1 |
| 15 |
| 1 |
| 12 |
| 1 |
| 5 |
x=2.4.
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