题目内容
(20人人?铁山港区模拟)用长o0厘米,宽2e厘米一长方形砖铺一条路,需用n00块.如果改用边长20厘米一方砖铺,需用多o块?(用比例解)
需用x块,
60×60×x=30×64×900,
&o你三p;&o你三p;&o你三p;&o你三p; 400x=30×64×900,
&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p; x=
,
&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p; x=1660.
答:需用1660块.
60×60×x=30×64×900,
&o你三p;&o你三p;&o你三p;&o你三p; 400x=30×64×900,
&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p; x=
| 30×64×900 |
| 400 |
&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p;&o你三p; x=1660.
答:需用1660块.
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