修一条水渠,如果每天多修8米,可提前4天完成.如果每天少修8米,要推迟8天.水渠长多少?为什么算式是(8+4)*2*(8+8),有什么理由
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 14:02:29
![修一条水渠,如果每天多修8米,可提前4天完成.如果每天少修8米,要推迟8天.水渠长多少?为什么算式是(8+4)*2*(8+8),有什么理由](/uploads/image/z/10217112-24-2.jpg?t=%E4%BF%AE%E4%B8%80%E6%9D%A1%E6%B0%B4%E6%B8%A0%2C%E5%A6%82%E6%9E%9C%E6%AF%8F%E5%A4%A9%E5%A4%9A%E4%BF%AE8%E7%B1%B3%2C%E5%8F%AF%E6%8F%90%E5%89%8D4%E5%A4%A9%E5%AE%8C%E6%88%90.%E5%A6%82%E6%9E%9C%E6%AF%8F%E5%A4%A9%E5%B0%91%E4%BF%AE8%E7%B1%B3%2C%E8%A6%81%E6%8E%A8%E8%BF%9F8%E5%A4%A9.%E6%B0%B4%E6%B8%A0%E9%95%BF%E5%A4%9A%E5%B0%91%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E7%AE%97%E5%BC%8F%E6%98%AF%EF%BC%888%2B4%EF%BC%89%2A2%2A%EF%BC%888%2B8%EF%BC%89%2C%E6%9C%89%E4%BB%80%E4%B9%88%E7%90%86%E7%94%B1)
xՒn@_%GBE>!rɵ}
;'C>0`҄ bDή9:%rR%Kޙo3\J,v}4hgM{*nk|8R3ӄȻ'.Hg/RfŎ5̫a1dBܭa癭m%gp<5\+[Jb|1Y M$/{}FuJN9b*7|.2fgGX6 ;a-ρrqbiUJWWYNOUHg}wҪä/0u {֙zlZ=X^NHNϱ]S}-o