题目内容
解方程或比例.
| 1.4:x=1:0.75 | 1+25%x=3. |
(1)
X+0.8=5.6,
X+0.8-0.8=5.6-0.8,
X×
=4.8×
,
X=8;
(2)1.4:x=1:0.75,
x=1.4×0.75,
x=1.05;
(3)1+25%x=3,
1+25%x-1=3-1,
0.25x÷0.25=2÷0.25,
x=8.
| 3 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 5 |
| 3 |
| 5 |
| 3 |
X=8;
(2)1.4:x=1:0.75,
x=1.4×0.75,
x=1.05;
(3)1+25%x=3,
1+25%x-1=3-1,
0.25x÷0.25=2÷0.25,
x=8.
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