问题
解答题
甲、乙两袋糖的重量比是4:1,从甲袋中取出2.6千克糖放入乙袋,这时甲、乙两袋糖的重量比是7:5,两袋糖一共重多少千克?
答案
2.6÷(
-4 4+1
)7 7+5
=2.6÷(
-4 5
)7 12
=2.6÷13 60
=12(千克)
答:两袋糖一共重12千克.
甲、乙两袋糖的重量比是4:1,从甲袋中取出2.6千克糖放入乙袋,这时甲、乙两袋糖的重量比是7:5,两袋糖一共重多少千克?
2.6÷(
-4 4+1
)7 7+5
=2.6÷(
-4 5
)7 12
=2.6÷13 60
=12(千克)
答:两袋糖一共重12千克.
Adam Lee is a very popular man in Ottawa. He is not famous in sports or the arts, people in the streets know about him, especially the . For those people, he is “Gloves Lee”. How did he get that ? He looks like any other businessman, wearing a suit and carrying a briefcase (公文包). But he’s . His briefcase always has some gloves. In winter, Mr. Lee walks in the streets, looking around at people. He stops when he someone with no gloves. He gives them a pair and then he moves on, looking for more people with cold . On winter days, Mr. Lee gloves. During the rest of the year, he buys gloves. People who have heard about him him gloves, and he has many in his apartment. Mr. Lee began doing this 21 years ago. Now, many poor people in the city know him and his behavior. But people who don’t know him are sometimes surprised by him. They don’t realize that he just wants to make them happy. A pair of gloves may be a thing, but it can make a big difference in winter.
|