问题
填空题
一件衣服通过两次降价后价格为原来的81%，则平均每年降价的百分率是______．
答案
设平均每年降价的百分率是x，根据题意列出方程，
（1-x）2=81%，
解得x=0.1或1.9（不合题意，舍去），
答：平均每年降价的百分率是10%．
搜题请搜索小程序“爱下问搜题”
一件衣服通过两次降价后价格为原来的81%，则平均每年降价的百分率是______．
设平均每年降价的百分率是x，根据题意列出方程，
（1-x）2=81%，
解得x=0.1或1.9（不合题意，舍去），
答：平均每年降价的百分率是10%．
| 完形填空。 | ||||
| I am fine here __1__ China. I __2__ classes with Chinese __3__. Now I have __4__ Chinese friends. They teach me Chinese and I teach __5__ English . I can __6__ a little Chinese now. In the afternoon, we sing and __7__ games. My school is __8__ very big, but __9__ is very nice, It is __10__ a river. Some- times we go to swim in the river. We go to school five days every week. On Sunday I go shopping with my Chinese friends. I have a good time here. Don't worry about me, mother. | ||||
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