It takes 4 hour for two pipes to simultaneously fill up a swimming pool,the smaller pipe would take 6 hour longer than the larger pipe.Find the time it would take the larger pipe to fill up the swimming pool.以上是该数学题,最好有说明,因
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![It takes 4 hour for two pipes to simultaneously fill up a swimming pool,the smaller pipe would take 6 hour longer than the larger pipe.Find the time it would take the larger pipe to fill up the swimming pool.以上是该数学题,最好有说明,因](/uploads/image/z/11521368-0-8.jpg?t=It+takes+4+hour+for+two+pipes+to+simultaneously+fill+up+a+swimming+pool%2Cthe+smaller+pipe+would+take+6+hour+longer+than+the+larger+pipe.Find+the+time+it+would+take+the+larger+pipe+to+fill+up+the+swimming+pool.%E4%BB%A5%E4%B8%8A%E6%98%AF%E8%AF%A5%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E6%9C%80%E5%A5%BD%E6%9C%89%E8%AF%B4%E6%98%8E%2C%E5%9B%A0)
It takes 4 hour for two pipes to simultaneously fill up a swimming pool,the smaller pipe would take 6 hour longer than the larger pipe.Find the time it would take the larger pipe to fill up the swimming pool.以上是该数学题,最好有说明,因
It takes 4 hour for two pipes to simultaneously fill up a swimming pool,the smaller pipe would take 6 hour longer than the larger pipe.Find the time it would take the larger pipe to fill up the swimming pool.
以上是该数学题,最好有说明,因为我完全不懂
It takes 4 hour for two pipes to simultaneously fill up a swimming pool,the smaller pipe would take 6 hour longer than the larger pipe.Find the time it would take the larger pipe to fill up the swimming pool.以上是该数学题,最好有说明,因
两个管同时灌满一游泳池花4小时,分开的话较小的一个比较大的一个多花刘小时,问大的一个单独灌满游泳池要花几小时?
设 为 x 小时,体积为V立方米
则小的 花 (x+6) 小时
大的速率为 V/x 立方米/小时
小的速率为 V/(x+6) 立方米/小时
列式:
4×『 V/x + V/(x+6)』= V
(x-1)^2 = 25
得x=6 或 -4(负数舍去)
这道是数学题吗?问题是什么?要求解答什么??????????