人教版六年级下册数学书44页1.2.下面是题.飞行时间/时 2 5 6 9航程/km 1460 3650 4380 6570(1)分别写出各航程和相对应飞行时间的比,比较比值的大小.(2)说明这个比值表示的意义(3)表中的航程和飞行

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人教版六年级下册数学书44页1.2.下面是题.飞行时间/时 2 5 6 9航程/km 1460 3650 4380 6570(1)分别写出各航程和相对应飞行时间的比,比较比值的大小.(2)说明这个比值表示的意义(3)表中的航程和飞行
人教版六年级下册数学书44页1.2.下面是题.
飞行时间/时 2 5 6 9
航程/km 1460 3650 4380 6570
(1)分别写出各航程和相对应飞行时间的比,比较比值的大小.
(2)说明这个比值表示的意义
(3)表中的航程和飞行时间成正比例吗?为什么?
请给我这3个小题的答案

人教版六年级下册数学书44页1.2.下面是题.飞行时间/时 2 5 6 9航程/km 1460 3650 4380 6570(1)分别写出各航程和相对应飞行时间的比,比较比值的大小.(2)说明这个比值表示的意义(3)表中的航程和飞行
(1)730=730=730
(2)平均速度
(3)成,因为航程随时间的增加而增加

730 730 730 730
速度
成正比 因为速度都相同

1、730 730 730 730
2、速度
3、成正比
∵速度都相同

我写了 也没用了吧 等会儿我拿全解

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