求高手解答下列问题!我给高分!
某城市自来水收费实行阶梯水价,收费标准为:不超过12t部分按2元/吨来收费,超过12t但不超过18t部分按2.5元/吨收费,超过18t部分按3元/t收费。问题(1)某用户...
某城市自来水收费实行阶梯水价,收费标准为:
不超过12t部分按2元/吨来收费,超过12t但不超过18t部分按2.5元/吨收费,超过18t部分按3元/t收费。
问题(1)某用户5月份用水xt(x大于18),则交水费为多少元?
问题(2)若用水28t,则水费为多少元?
要像这样发:问题(1)……
问题(2)……
知道了吗!
还有:单句改错:
My baseball is under sofa.
阅读短文,回答问题。
My name is David.I am an American boy.My family are in the Beijing.My parents work(工作) there.I have a sister but no brothers.My sister and I are students of a middle school in Beijing.We love China.We have a nice house in Beijing.My room is big.There is a bed ,a desk and a computer in it.My books are on my desk and next to my computer.There are some pop singers'(流行歌手的)pictures on the wall.I like them.
问题(1)David has_______.
A:a brother B:a sister c:brothers D:sisters
注意:必须认真回答,我用上了全部家当了!非诚勿扰!555555555,my mony!快快快快快快快快快快!在0:20之前发过来,我争取多挣点家当!快快快快快快快快快快快快快快快快快快快快快快快快快!急用 展开
不超过12t部分按2元/吨来收费,超过12t但不超过18t部分按2.5元/吨收费,超过18t部分按3元/t收费。
问题(1)某用户5月份用水xt(x大于18),则交水费为多少元?
问题(2)若用水28t,则水费为多少元?
要像这样发:问题(1)……
问题(2)……
知道了吗!
还有:单句改错:
My baseball is under sofa.
阅读短文,回答问题。
My name is David.I am an American boy.My family are in the Beijing.My parents work(工作) there.I have a sister but no brothers.My sister and I are students of a middle school in Beijing.We love China.We have a nice house in Beijing.My room is big.There is a bed ,a desk and a computer in it.My books are on my desk and next to my computer.There are some pop singers'(流行歌手的)pictures on the wall.I like them.
问题(1)David has_______.
A:a brother B:a sister c:brothers D:sisters
注意:必须认真回答,我用上了全部家当了!非诚勿扰!555555555,my mony!快快快快快快快快快快!在0:20之前发过来,我争取多挣点家当!快快快快快快快快快快快快快快快快快快快快快快快快快!急用 展开
3个回答
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问题(1)12*2+6*2.5+3*(x-18)=3*x-15
问题(2)3*28-15=69
改错,under后加the
阅读选B
问题(2)3*28-15=69
改错,under后加the
阅读选B
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问题(1)12*2+6*2.5+3*(x-18)=3*x-15
问题(2)3*28-15=69
单句改错是My baseball is under the sofa
最后那个选B
问题(2)3*28-15=69
单句改错是My baseball is under the sofa
最后那个选B
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