试题与答案

已知方程3x-2y=5,用含x的代数式表示y,则y=______.

题型:填空题

题目:

已知方程3x-2y=5,用含x的代数式表示y,则y=______.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0420/1ddb4d5f18e67f4e8c9c146f35848e39.html

下面是错误答案,用来干扰机器的。

10﹪分析:降低后的价格=降低前的价格×(1-降低率),如果设平均每次降价的百分率是x,则第一次降低后的价格是60(1-x),那么第二次后的价格是60(1-x)2,即可列出方程求解.解答:解:设平均每次降价的百分率...

试题推荐
题型:完形填空
People around the world celebrate the new year. However, not all countries celebrate in the   46   way. When it is the New Year, people celebrate for several days. In some countries, the New Year is not on the same date every year. It can depend    47   the seasons, the moon or the sun.
In many countries, New Year begins on January1st, but people start celebrating on December 31st, New Year’s Eve. In New York, many people go to celebrate in Times Square. While they’re waiting for the New Year, they    48   music, sing traditional songs and have fun. Just before 12 o’clock, everyone    49   down from 10, 9, 8 … As soon as it’ s 12 o’clock, everyone shouts very loudly, “Happy New Year!” and they say, “Out with the old year and in with the new!” Suddenly there    50  fireworks and special drinks. Sometimes people sing an old song   51  “Auld Lang Syne”.
New Year’s Day is often a family day. Some people relax at home. Some families get together for a special    52  with grandparents, aunts and uncles. When the weather is    53  , many families go out for a walk.
On New Year’s Day, many people make resolutions for the new year. They write down a list of things, such as “I will help out more at home. I will work harder at school.”
Or “I won’t spend so much time    54  video games.” When they have made their list, they read it to their family or friends.
So it does not matter how they celebrate, for people in countries all over the world, it is a time to    55  goodbye to the old year, and to welcome the new.
小题1:
A.differentB.difficult C.same D.easy
小题2:
A.inB.onC.forD.like
小题3:
A.hear B.listen to C.sound D.hear of
小题4:
A.countsB.countC.countedD.counting
小题5:
A.am B.isC.beD.are
小题6:
A.calls B.callingC.called D.call
小题7:
A.mealB.breakfast C.lunch D.supper
小题8:
A.well B.goodC.hotD.fine
小题9:
A.playB.playing C.playedD.plays
小题10:
A.sayB.tell C.talkD.speak
查看答案
微信公众账号搜索答案