英语 语文 数学

2024-11-22 02:38:37
推荐回答(5个)
回答1:

英语:go
语文:十全十美?二十而美?
数学:一:35/45
设分母为X,则分子为(80-X),由题意得,
7/9*(80-X)=X 解得X=45,则分子为80-45=35
二,面粉:30 大米:32
设面粉为X,则大米为(62-X),由题意得,
1/5*X+2=1/4*(62-X) 解得X=30,则大米为62-30=32(袋)
三:看不懂题目,“分之”是什么意思?整数部分、分子、分母谁大谁小?
四:14
设做对题数为X,则做错题数为(20-X),由题意得,
5X-(20-X)=64 解得X=14,则做错题数为6(道)
五:0.466,6循环
∵小数点前1000位上各数字之和为4664
又∵A、B、C中有两个数是相等的
∴A=4,B=6,C=6

回答2:

英语:go 数学:一:35/45
设分母为X,则分子为(80-X),由题意得,
7/9*(80-X)=X 解得X=45,则分子为80-45=35
二,面粉:30 大米:32
设面粉为X,则大米为(62-X),由题意得,
1/5*X+2=1/4*(62-X) 解得X=30,则大米为62-30=32(袋)
三:看不懂题目,“分之”是什么意思?整数部分、分子、分母谁大谁小?
四:14
设做对题数为X,则做错题数为(20-X),由题意得,
5X-(20-X)=64 解得X=14,则做错题数为6(道)
五:0.466,6循环
∵小数点前1000位上各数字之和为4664
又∵A、B、C中有两个数是相等的
∴A=4,B=6,C=6
语文:我没见过,是不是()全()美?
还是不懂的就问我

回答3:

go
十全十美,【解 释】:十分完美,毫无欠缺
35/45
30,32
55/8
14
在循环小数0.ABC,AC循环中,已知小数点右边前1000位上各数字之和为4664,且A、B、C中有两个数是相等的。这个循环小数是多少? 334a 333b 333c=4664 分别假设是AB相等,BC相等,AC相等 最后可得0.266(266循环) 最佳答案:

回答4:

答案:
1.go
2.十全十美,【解 释】:十分完美,毫无欠缺
3.35/45
4.30,32
5.55/8
6.14
7.在循环小数0.ABC,AC循环中,已知小数点右边前1000位上各数字之和为4664,且A、B、C中有两个数是相等的。这个循环小数是多少? 334a 333b 333c=4664 分别假设是AB相等,BC相等,AC相等 最后可得0.266(266循环) 最佳答案:

回答5:

1,go
2只听过十全十美
3,设分子为x,分母为y
所以 x+y=80
ky/kx=7/9
(第二个式子上下同约掉k)
得:x+y=80
y/x=7/9
解之得:x=45,y=35
所以为35/45
4.不好意思没学过,呵呵
5.同样的方法我们设做对的道数为x,那么错的就是20-x,
5x+(-1)(20-x)=64
解之得:x=14

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