一道数学题,2道英语同义句1 The rain will stop later in the day____stop ____later in the day2 which is the way to east park?____ _____ i____to east park某场设计一种桶式净水器,装有一个入水管和3个出水管.当桶内已有

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一道数学题,2道英语同义句1 The rain will stop later in the day____stop ____later in the day2 which is the way to east park?____ _____ i____to east park某场设计一种桶式净水器,装有一个入水管和3个出水管.当桶内已有

一道数学题,2道英语同义句1 The rain will stop later in the day____stop ____later in the day2 which is the way to east park?____ _____ i____to east park某场设计一种桶式净水器,装有一个入水管和3个出水管.当桶内已有
一道数学题,2道英语
同义句
1 The rain will stop later in the day
____stop ____later in the day
2 which is the way to east park?
____ _____ i____to east park
某场设计一种桶式净水器,装有一个入水管和3个出水管.当桶内已有一定量的水后,如果同时打开入水管和一个出水管,可供净水20分,诺同时打开水管和两个出水管,可供净水8分钟,问同事打开入水管和3个出水管,可供净水几分钟

一道数学题,2道英语同义句1 The rain will stop later in the day____stop ____later in the day2 which is the way to east park?____ _____ i____to east park某场设计一种桶式净水器,装有一个入水管和3个出水管.当桶内已有
1 The rain will stop later in the day
_It'll___stop _rain___later in the day
2 which is the way to east park?
__How__ __can___ i_get___to east park
设每分钟进的水可供打开一个出水管提供净水x分钟,桶中原有的水可供一个出水管提供净水y分钟
则有20x+y=20
8x+y=2*8
解出x=1/3,y=40/3
则3个出水管全部打开的话,可提供z分钟
z*x+y=3*z
解出z=5分钟

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1 The rain will stop later in the day
It'll stop rain later in the day
2 which is the way to east park?
How can i get to east park

1 The rain will stop later in the day
_It'll___stop _rain___later in the day
2 which is the way to east park?
__How__ __can___ i_get___to east park
则有20x+y=20
8x+y=2*8
解出x=1/3,y=40/3
则3个出水管全部打开的话,可提供z分钟
z*x+y=3*z
解出z=5分钟

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