mwbr.net
当前位置:首页 >> 脱式计算.2.5+(6.2%2.6)+1.8119%(42.5+1.6+3.6... >>

脱式计算.2.5+(6.2%2.6)+1.8119%(42.5+1.6+3.6...

(1)2.5:57=x:6, 57x=2.5×6, 57x×75=15×75, x=21;(2)11.6-1.75x=1.6,11.6-1.75x+1.75x-1.6=1.6+1.75x-1.6, 10=1.75x, 1.75x=10, 1.75x÷1.75=10÷1.75, x=407.

网站首页 | 网站地图
All rights reserved Powered by www.mwbr.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com