题目内容
求下列未知数的值.
(1+30%)x=45.5
x:
=0.8
2x×
=
.
(1+30%)x=45.5
x:
| 5 |
| 4 |
2x×
| 9 |
| 10 |
| 1 |
| 5 |
(1)(1+30%)x=45.5
130%x=45.4
130%x÷130%=45.5÷130%
x=35;
(2)x:
=0.8
x=
×0.8
x=1;
(3)2x×
=
x=
x÷
=
÷
x=
.
130%x=45.4
130%x÷130%=45.5÷130%
x=35;
(2)x:
| 5 |
| 4 |
x=
| 5 |
| 4 |
x=1;
(3)2x×
| 9 |
| 10 |
| 1 |
| 5 |
| 9 |
| 5 |
| 1 |
| 5 |
| 9 |
| 5 |
| 9 |
| 5 |
| 1 |
| 5 |
| 9 |
| 5 |
x=
| 1 |
| 9 |
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